0001437749-23-006171 | 10-K | XBRL Viewer

Other Assets Disclosure [Text Block]

Note 7 — Other Non-Current Assets

Other non-current assets consisted of the following (in thousands):

	*December 31,*		*December 31,*
	*2022*		*2021*
Permitting costs⁽¹⁾	$	8,575	$	7,609
Enterprise resource planning system, net		—		354
Rio Grande Site Lease initial direct costs		19,612		13,314
Deposits and other		185		35
Total other non-current assets, net	$	28,372	$	21,312

⁽¹⁾

Permitting costs primarily represent costs incurred in connection with our permit applications to the United States Army Corps of Engineers and the U.S. Fish and Wildlife Service for wetlands and habitat mitigation measures for potential impacts to wetlands and habitat that may be caused by the construction of the Terminal.

Note 10 - Shareholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Sep. 14, 2022	Apr. 06, 2022	Dec. 31, 2022	Dec. 31, 2021
Proceeds from Issuance of Common Stock			$ 115,000	$ 557
Stock Issued During Period, Exercise Of Warrants, Shares (in shares)			500,000
HGC NEXT INV LLC [Member]
Stock Issued During Period, Shares, New Issues (in shares)		4,618,226
Share Price (in dollars per share)		$ 6.496
Proceeds from Issuance of Common Stock		$ 30,000
The “Purchasers” [Member]
Stock Issued During Period, Shares, New Issues (in shares)	15,454,160
Share Price (in dollars per share)	$ 5.50
Proceeds from Issuance of Common Stock	$ 85,000

Note 5 - Property, Plant and Equipment (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Depreciation, Total	$ 162	$ 184

Note 2 - Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2022

Significant Accounting Policies [Text Block]

Note 2 — Summary of Significant Accounting Policies

Use of Estimates

The preparation of Consolidated Financial Statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the amounts reported in the Consolidated Financial Statements and the accompanying notes. Management evaluates its estimates and related assumptions regularly, including those related to the value of property, plant and equipment, income taxes including valuation allowances for net deferred tax assets, share-based compensation and fair value measurements. Changes in facts and circumstances or additional information may result in revised estimates, and actual results may differ from these estimates.

Concentrations of Credit Risk

Financial instruments that potentially subject us to a concentration of credit risk consist principally of cash and cash equivalents. We maintain cash and cash equivalent balances with a single financial institution, which may at times be in excess of federally insured levels. We have not incurred losses related to these cash and cash equivalent balances to date.

Cash Equivalents

We consider all highly liquid investments with an original maturity of three months or less when purchased to be cash equivalents.

Property, Plant and Equipment

Generally, we begin to capitalize the costs of our development projects once construction of the individual project is probable. This assessment includes the following criteria:

•

funding for design and permitting has been identified and is expected in the near-term;

•

key vendors for development activities have been identified, and we expect to engage them at commercially reasonable terms;

•

we have committed to commencing development activities;

•

regulatory approval is probable;

•

construction financing is expected to be available at the time of a final investment decision (“FID”);

•

prospective customers have been identified and the FID is probable; and

•

receipt of customary local tax incentives, as needed for project viability, is probable.

Prior to meeting the criteria above, costs associated with a project are expensed as incurred. Expenditures for normal repairs and maintenance are expensed as incurred.

When assets are retired or disposed, the cost and accumulated depreciation are eliminated from the accounts and any gain or loss is reflected in our Consolidated Statements of Operations.

Property, plant and equipment is carried at historical cost and depreciated using the straight-line method over their estimated useful lives.

Leasehold improvements are depreciated over the lesser of the economic life of the leasehold improvement or the term of the lease, without regard to extension or renewal rights.

Management tests property, plant and equipment for impairment whenever events or changes in circumstances have indicated that the carrying amount of property, plant and equipment might not be recoverable. Assets are grouped at the lowest level for which there are identifiable cash flows that are largely independent of the cash flows of other groups of assets for purposes of assessing recoverability. Recoverability generally is determined by comparing the carrying value of the asset to the expected undiscounted future cash flows of the asset. If the carrying value of the asset is not recoverable, the amount of impairment loss is measured as the excess, if any, of the carrying value of the asset over its estimated fair value.

Leases

The Company determines if a contractual arrangement represents or contains a lease at inception. Operating leases with lease terms greater than twelve months are included in Operating lease right-of-use assets and Operating lease liabilities in the Consolidated Balance Sheets.

Operating lease right-of-use assets and lease liabilities are recognized at the commencement date based on the present value of the future lease payments over the lease term. The Company utilizes its incremental borrowing rate in determining the present value of the future lease payments. The incremental borrowing rate is derived from information available at the lease commencement date and represents the rate of interest that the Company would have to pay to borrow on a collateralized basis over a similar term and amount equal to the lease payments in a similar economic environment. The right-of-use assets and lease liabilities may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. The Company has lease arrangements that include both lease and non-lease components. The Company accounts for non-lease components separately from the lease component.

Warrants

The Company determines the accounting classification of warrants that are issued, as either liability or equity, by first assessing whether the warrants meet liability classification in accordance with Accounting Standards Codification (“ASC”) 480 Distinguishing Liabilities from Equity (“ASC 480”), and then in accordance with ASC 815-40, Accounting for Derivative Financial Instruments Indexed to, and Potentially Settled in, a Company’s Own Stock (“ASC 815-40”). Under ASC 480, warrants are considered liability classified if the warrants are mandatorily redeemable, obligate the issuer to settle the warrants or the underlying shares by paying cash or other assets, or must or may require settlement by issuing a variable number of shares.

If warrants do not meet liability classification under ASC 480, the Company assesses the requirements under ASC 815-40, which states that contracts that require or may require the issuer to settle the contract for cash or a variable number of shares are liabilities recorded at fair value, irrespective of the likelihood of the transaction occurring that triggers the net cash settlement feature. If the warrants do not require liability classification under ASC 815-40, in order to conclude equity classification, the Company assesses whether the warrants are indexed to our common stock and whether the warrants are classified as equity under ASC 815-40 or other applicable GAAP. After all relevant assessments are made, the Company concludes whether the warrants are classified as liability or equity. Liability classified warrants are required to be accounted for at fair value both on the date of issuance and on subsequent accounting period ending dates, with all changes in fair value after the issuance date recorded in the statements of operations as a gain or loss. Equity classified warrants are accounted for at fair value on the issuance date with no changes in fair value recognized after the issuance date.

Fair Value of Financial Instruments

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Hierarchy Levels 1, 2 and 3 are terms for the priority of inputs to valuation techniques used to measure fair value. Hierarchy Level 1 inputs are quoted prices in active markets for identical assets or liabilities. Hierarchy Level 2 inputs are inputs other than quoted prices included within Level 1 that are directly or indirectly observable for the asset or liability. Hierarchy Level 3 inputs are inputs that are not observable in the market. In determining fair value, we use observable market data when available, or models that incorporate observable market data. In addition to market information, we incorporate transaction-specific details that, in management’s judgment, market participants would take into account in measuring fair value. We maximize the use of observable inputs and minimize our use of unobservable inputs in arriving at fair value estimates. Recurring fair-value measurements are performed for Common Stock Warrant liabilities as disclosed in Note 9 – Preferred Stock and Common Stock Warrants. The carrying amount of cash and cash equivalents and accounts payable reported on the Consolidated Balance Sheets approximates fair value due to their short-term maturities.

Treasury Stock

Treasury stock is recorded at cost. Issuance of treasury stock is accounted for on a weighted average cost basis. Differences between the cost of treasury stock and the re-issuance proceeds are charged to additional paid-in capital.

Net Earnings (Loss) Per Share

Net earnings (loss) per share (“EPS”) is computed in accordance with GAAP. Basic EPS excludes dilution and is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the period. Diluted EPS reflects potential dilution and is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the period increased by the number of additional common shares that would have been outstanding if the potential common shares had been issued and were dilutive. The dilutive effect of unvested stock and warrants is calculated using the treasury-stock method and the dilutive effect of convertible securities is calculated using the if-converted method. Basic and diluted EPS for all periods presented are the same since the effect of our potentially dilutive securities are anti-dilutive to our net loss per share, as disclosed in Note 11 – Net Loss Per Share Attributable to Common Stockholders.

Share-based Compensation

We recognize share-based compensation at fair value on the date of grant. The fair value is recognized as expense (net of any capitalization) over the requisite service period. For equity-classified share-based compensation awards, compensation cost is recognized based on the grant-date fair value using the quoted market price of our common stock and not subsequently remeasured. The fair value is recognized as expense, net of any capitalization, using the straight-line basis for awards that vest based on service conditions and using the graded-vesting attribution method for awards that vest based on performance conditions. We estimate the service periods for performance awards utilizing a probability assessment based on when we expect to achieve the performance conditions. For liability classified share-based compensation awards, compensation cost is initially recognized on the grant date using estimated payout levels. Compensation cost is subsequently adjusted quarterly to reflect the updated estimated payout levels based on the changes in our stock price. We account for forfeitures as they occur.

Income Taxes

Provisions for income taxes are based on taxes payable or refundable for the current year and deferred taxes on temporary differences between the tax basis of assets and liabilities and their reported amounts in the Consolidated Financial Statements. Deferred tax assets and liabilities are included in the Consolidated Financial Statements at currently enacted income tax rates applicable to the period in which the deferred tax assets and liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the current period’s provision for income taxes. A valuation allowance is recorded to reduce the carrying value of our net deferred tax assets when it is more likely than not that a portion or all of the deferred tax assets will expire before realization of the benefit or future deductibility is not probable. We recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the tax position.

Segments

The Company's chief operating decision maker allocates resources and assesses financial performance on a consolidated basis. As such, for purposes of financial reporting under GAAP during the years ended December 31, 2022 and 2021, the Company operated as a single operating segment.

Smaller Reporting Company

Under Rule 12b-2 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), the Company qualifies as a “smaller reporting company” because the value of its common stock held by non-affiliates as of the end of its most recently completed second fiscal quarter was less than $250 million. For as long as the Company remains a smaller reporting company, it may take advantage of certain exemptions from the SEC’s reporting requirements that are otherwise applicable to public companies that are not smaller reporting companies.

Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 31, 2022	Dec. 31, 2021
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	480,000,000	480,000,000
Common stock, shares issued (in shares)	143,500,000	120,800,000
Common stock, shares outstanding (in shares)	143,500,000	120,800,000
Treasury stock, shares (in shares)	991,089	346,126
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized (in shares)	500,000	500,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Series A Convertible Preferred Stock [Member]
Temporary equity, liquidation preference (in dollars per share)	$ 1,000	$ 1,000
Temporary equity, shares issued (in shares)	82,948	73,713
Temporary equity, shares outstanding (in shares)	82,948	73,713
Series B Convertible Preferred Stock [Member]
Temporary equity, liquidation preference (in dollars per share)	$ 1,000	$ 1,000
Temporary equity, shares issued (in shares)	79,239	70,433
Temporary equity, shares outstanding (in shares)	79,239	70,433
Series C Convertible Preferred Stock [Member]
Temporary equity, liquidation preference (in dollars per share)	$ 1,000	$ 1,000
Temporary equity, shares issued (in shares)	59,366	42,490
Temporary equity, shares outstanding (in shares)	59,366	42,490

Note 11 - Net Loss Per Share Attributable to Common Stockholders - Anti-dilutive Securities (Details) - shares
shares in Thousands

12 Months Ended

Dec. 31, 2022

Dec. 31, 2021

49,819

46,705

Unvested Stock [Member]

Convertible Preferred Stocks [Member]

^[1]

1,904

1,662

Common Stock Warrants [Member]

46,533

30,754

1,382

2,207

IPO Warrants [Member]

^[2]

12,082

[1]	Does not include 9.4 million shares and 8.3 million shares of unvested restricted stock and restricted stock units for the years ended December 31, 2022 and 2021 because the performance conditions had not yet been satisfied as of December 31, 2022 and 2021, respectively.
[2]	The IPO Warrants were issued in connection with our initial public offering in 2015 and expired July 24, 2022.

Note 4 - Sale of Equity Interests in Rio Bravo Pipeline, LLC (Details Textual) - Rio Bravo [Member] - USD ($) $ in Millions	Mar. 02, 2020	Feb. 13, 2020	Dec. 31, 2022
Equity Method Investment, Ownership Percentage		100.00%
Disposal Group, Including Discontinued Operation, Consideration	$ 19.4
Proceeds from Divestiture of Businesses	$ 15.0
Equity Method Investments, Rights to The Natural Gas Firm Transportation Capacity Term (Year)		20 years
Sale of Business, Failure to Issue Notice, Maximum Right Price to Sell Back Equity Interests			$ 23.0

Note 7 - Other Non-current Assets (Tables)

12 Months Ended

Dec. 31, 2022

Schedule of Other Assets, Noncurrent [Table Text Block]

	*December 31,*		*December 31,*
	*2022*		*2021*
Permitting costs⁽¹⁾	$	8,575	$	7,609
Enterprise resource planning system, net		—		354
Rio Grande Site Lease initial direct costs		19,612		13,314
Deposits and other		185		35
Total other non-current assets, net	$	28,372	$	21,312

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating activities:
Net loss attributable to NextDecade Corporation	$ (60,071)	$ (22,039)
Adjustment to reconcile net loss to net cash used in operating activities
Depreciation	162	184
Share-based compensation expense (forfeiture)	7,472	(4,313)
Loss on Common Stock Warrant liabilities	5,747	2,533
Amortization of right-of-use assets	756	551
Amortization of other non-current assets	354	1,416
Changes in operating assets and liabilities:
Prepaid expenses	(314)	(186)
Accounts payable	684	(26)
Operating lease liabilities	(678)	(548)
Accrued expenses and other liabilities	5,812	4,468
Net cash used in operating activities	(40,076)	(17,960)
Investing activities:
Acquisition of property, plant and equipment	(33,753)	(12,105)
Acquisition of other non-current assets	(7,135)	(6,429)
Net cash used in investing activities	(40,888)	(18,534)
Financing activities:
Proceeds from sale of Series C Convertible Preferred Stock	10,500	39,500
Proceeds from sale of common stock	115,000	557
Equity issuance costs	(3,952)	(268)
Preferred stock dividends	(75)	(67)
Shares repurchased related to share-based compensation	(3,272)	(284)
Net cash provided by financing activities	118,201	39,438
Net increase in cash and cash equivalents	37,237	2,944
Cash and cash equivalents – beginning of period	25,552	22,608
Cash and cash equivalents – end of period	62,789	25,552
Non-cash investing activities:
Accounts payable for acquisition of property, plant and equipment	162	117
Accrued liabilities for acquisition of property, plant and equipment	12,046	926
Accrued liabilities for acquisition of other non-current assets	279	0
Pipeline assets obtained in exchange for other non-current liabilities	0	84
Non-cash financing activities:
Paid-in-kind dividends on Convertible Preferred Stock	24,207	18,227
Accretion of deemed dividends on Series A Convertible Preferred Stock	0	63
Accrued liabilities for equity issuance costs	$ 0	$ 35

Note 13 - Income Taxes - Effective Income Tax rate (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
U.S. federal statutory rate, beginning of year	21.00%	21.00%
Common stock warrant liabilities	(2.00%)	0.00%
Officers' compensation	(1.00%)	0.00%
Other	(1.00%)	(4.00%)
Valuation allowance	(17.00%)	(17.00%)
Effective tax rate as reported	0.00%	0.00%

Note 9 - Preferred Stock and Common Stock Warrants - Allocation of Net Cash Proceeds (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Gross proceeds	$ 10,500	$ 39,500
Equity issuance costs	(20)	(62)
Net proceeds - Initial Fair Value Allocation	10,480	39,438
Series C Convertible Preferred Stock [Member]
Net proceeds - Initial Fair Value Allocation	9,836	37,807
Per balance sheet upon issuance	9,836	37,807
Series C Warrants [Member]
Net proceeds - Initial Fair Value Allocation	644	1,631
Per balance sheet upon issuance	$ 644	$ 1,631

Note 5 - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, plant and equipment, net	$ 218,646	$ 173,816
Computer Equipment [Member]
Property, plant and equipment, gross	780	633
Furniture and Fixtures [Member]
Property, plant and equipment, gross	610	464
Leasehold Improvements [Member]
Property, plant and equipment, gross	101	101
Excluding Construction in Progress [Member]
Property, plant and equipment, gross	1,491	1,198
Less: accumulated depreciation	(1,006)	(844)
Property, plant and equipment, net	485	354
Construction in Progress [Member]
Property, plant and equipment, gross	218,161	173,462
Construction in Progress [Member] \| Rio Grande [Member]
Property, plant and equipment, gross	197,144	152,445
Construction in Progress [Member] \| Rio Bravo [Member]
Property, plant and equipment, gross	$ 21,017	$ 21,017

Note 13 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards	$ 175,400
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	26,100
Income Tax Expense (Benefit), Total	$ 0	$ 0
Open Tax Year	2019 2020 2021 2022

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Revenues	$ 0	$ 0
Operating Expenses
General and administrative expenses	49,093	16,803
Development expense, net	4,101	1,615
Lease expense	1,119	905
Depreciation expense	162	184
Total operating expenses	54,475	19,507
Total operating loss	(54,475)	(19,507)
Other income (expense)
Loss on Common Stock Warrant liabilities	(5,747)	(2,533)
Other, net	151	1
Total other expense	(5,596)	(2,532)
Net loss attributable to NextDecade Corporation	(60,071)	(22,039)
Preferred stock dividends	(24,282)	(18,294)
Deemed dividends on Series A Convertible Preferred Stock	0	(63)
Net loss attributable to common stockholders	$ (84,353)	$ (40,396)
Net loss per common share - basic and diluted (in dollars per share)	$ (0.65)	$ (0.34)
Weighted average shares outstanding - basic and diluted (in shares)	130,136	119,201

Note 3 - Prepaid Expenses and Other Current Assets

12 Months Ended

Dec. 31, 2022

Prepaid Expense and Other Current Assets [Text Block]

Note 3 — Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following (in thousands):

	*December 31,*		*December 31,*
	*2022*		*2021*
Prepaid subscriptions	$	423	$	85
Prepaid insurance		619		376
Prepaid marketing and sponsorships		—		60
Other		107		314
Total prepaid expenses and other current assets	$	1,149	$	835

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 62,789	$ 25,552
Prepaid expenses and other current assets	1,149	835
Total current assets	63,938	26,387
Property, plant and equipment, net	218,646	173,816
Operating lease right-of-use assets, net	1,474	590
Other non-current assets	28,372	21,312
Total assets	312,430	222,105
Current liabilities
Accounts payable	1,084	281
Accrued liabilities and other current liabilities	23,184	5,973
Current Common Stock Warrant liabilities	0	1,376
Current operating lease liabilities	1,093	596
Total current liabilities	25,361	8,226
Non-current Common Stock Warrant liabilities	6,790	2,587
Non-current operating lease liabilities	465	0
Other non-current liabilities	23,000	23,000
Total liabilities	55,616	33,813
Commitments and contingencies (Note 14)
Stockholders’ equity
Common stock, $0.0001 par value Authorized: 480.0 million shares at December 31, 2022 and 2021, Issued and outstanding: 143.5 million shares and 120.8 million shares at December 31, 2022 and 2021, respectively	14	12
Treasury stock: 991,089 shares and 346,126 shares at December 31, 2022 and 2021, respectively, at cost	(4,587)	(1,315)
Preferred stock, $0.0001 par value Authorized: 0.5 million, after designation of the Convertible Preferred Stock, Issued and outstanding: none at December 31, 2022 and 2021	0	0
Additional paid-in-capital	289,084	191,264
Accumulated deficit	(230,140)	(170,069)
Total stockholders’ equity	54,371	19,892
Total liabilities, Convertible Preferred Stock and stockholders’ equity	312,430	222,105
Series A Convertible Preferred Stock [Member]
Current liabilities
Convertible Preferred Stock	73,026	63,791
Series B Convertible Preferred Stock [Member]
Current liabilities
Convertible Preferred Stock	73,408	64,602
Series C Convertible Preferred Stock [Member]
Current liabilities
Convertible Preferred Stock	$ 56,009	$ 40,007

Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Use of Estimates, Policy [Policy Text Block]

Use of Estimates

Concentration Risk, Credit Risk, Policy [Policy Text Block]

Concentrations of Credit Risk

Financial instruments that potentially subject us to a concentration of credit risk consist principally of cash and cash equivalents. We maintain cash and cash equivalent balances with a single financial institution, which may at times be in excess of federally insured levels. We have not incurred losses related to these cash and cash equivalent balances to date.

Cash and Cash Equivalents, Policy [Policy Text Block]

Cash Equivalents

We consider all highly liquid investments with an original maturity of three months or less when purchased to be cash equivalents.

Property, Plant and Equipment, Policy [Policy Text Block]

Property, Plant and Equipment

Generally, we begin to capitalize the costs of our development projects once construction of the individual project is probable. This assessment includes the following criteria:

•

funding for design and permitting has been identified and is expected in the near-term;

•

key vendors for development activities have been identified, and we expect to engage them at commercially reasonable terms;

•

we have committed to commencing development activities;

•

regulatory approval is probable;

•

construction financing is expected to be available at the time of a final investment decision (“FID”);

•

prospective customers have been identified and the FID is probable; and

•

receipt of customary local tax incentives, as needed for project viability, is probable.

Prior to meeting the criteria above, costs associated with a project are expensed as incurred. Expenditures for normal repairs and maintenance are expensed as incurred.

When assets are retired or disposed, the cost and accumulated depreciation are eliminated from the accounts and any gain or loss is reflected in our Consolidated Statements of Operations.

Property, plant and equipment is carried at historical cost and depreciated using the straight-line method over their estimated useful lives.

Leasehold improvements are depreciated over the lesser of the economic life of the leasehold improvement or the term of the lease, without regard to extension or renewal rights.

Management tests property, plant and equipment for impairment whenever events or changes in circumstances have indicated that the carrying amount of property, plant and equipment might not be recoverable. Assets are grouped at the lowest level for which there are identifiable cash flows that are largely independent of the cash flows of other groups of assets for purposes of assessing recoverability. Recoverability generally is determined by comparing the carrying value of the asset to the expected undiscounted future cash flows of the asset. If the carrying value of the asset is not recoverable, the amount of impairment loss is measured as the excess, if any, of the carrying value of the asset over its estimated fair value.

Lessee, Leases [Policy Text Block]

Leases

The Company determines if a contractual arrangement represents or contains a lease at inception. Operating leases with lease terms greater than twelve months are included in Operating lease right-of-use assets and Operating lease liabilities in the Consolidated Balance Sheets.

Operating lease right-of-use assets and lease liabilities are recognized at the commencement date based on the present value of the future lease payments over the lease term. The Company utilizes its incremental borrowing rate in determining the present value of the future lease payments. The incremental borrowing rate is derived from information available at the lease commencement date and represents the rate of interest that the Company would have to pay to borrow on a collateralized basis over a similar term and amount equal to the lease payments in a similar economic environment. The right-of-use assets and lease liabilities may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. The Company has lease arrangements that include both lease and non-lease components. The Company accounts for non-lease components separately from the lease component.

Warrants [Policy Text Block]

Warrants

The Company determines the accounting classification of warrants that are issued, as either liability or equity, by first assessing whether the warrants meet liability classification in accordance with Accounting Standards Codification (“ASC”) 480 Distinguishing Liabilities from Equity (“ASC 480”), and then in accordance with ASC 815-40, Accounting for Derivative Financial Instruments Indexed to, and Potentially Settled in, a Company’s Own Stock (“ASC 815-40”). Under ASC 480, warrants are considered liability classified if the warrants are mandatorily redeemable, obligate the issuer to settle the warrants or the underlying shares by paying cash or other assets, or must or may require settlement by issuing a variable number of shares.

If warrants do not meet liability classification under ASC 480, the Company assesses the requirements under ASC 815-40, which states that contracts that require or may require the issuer to settle the contract for cash or a variable number of shares are liabilities recorded at fair value, irrespective of the likelihood of the transaction occurring that triggers the net cash settlement feature. If the warrants do not require liability classification under ASC 815-40, in order to conclude equity classification, the Company assesses whether the warrants are indexed to our common stock and whether the warrants are classified as equity under ASC 815-40 or other applicable GAAP. After all relevant assessments are made, the Company concludes whether the warrants are classified as liability or equity. Liability classified warrants are required to be accounted for at fair value both on the date of issuance and on subsequent accounting period ending dates, with all changes in fair value after the issuance date recorded in the statements of operations as a gain or loss. Equity classified warrants are accounted for at fair value on the issuance date with no changes in fair value recognized after the issuance date.

Fair Value of Financial Instruments, Policy [Policy Text Block]

Fair Value of Financial Instruments

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Hierarchy Levels 1, 2 and 3 are terms for the priority of inputs to valuation techniques used to measure fair value. Hierarchy Level 1 inputs are quoted prices in active markets for identical assets or liabilities. Hierarchy Level 2 inputs are inputs other than quoted prices included within Level 1 that are directly or indirectly observable for the asset or liability. Hierarchy Level 3 inputs are inputs that are not observable in the market. In determining fair value, we use observable market data when available, or models that incorporate observable market data. In addition to market information, we incorporate transaction-specific details that, in management’s judgment, market participants would take into account in measuring fair value. We maximize the use of observable inputs and minimize our use of unobservable inputs in arriving at fair value estimates. Recurring fair-value measurements are performed for Common Stock Warrant liabilities as disclosed in Note 9 – Preferred Stock and Common Stock Warrants. The carrying amount of cash and cash equivalents and accounts payable reported on the Consolidated Balance Sheets approximates fair value due to their short-term maturities.

Treasury Stock [Policy Text Block]

Treasury Stock

Treasury stock is recorded at cost. Issuance of treasury stock is accounted for on a weighted average cost basis. Differences between the cost of treasury stock and the re-issuance proceeds are charged to additional paid-in capital.

Earnings Per Share, Policy [Policy Text Block]

Net Earnings (Loss) Per Share

Net earnings (loss) per share (“EPS”) is computed in accordance with GAAP. Basic EPS excludes dilution and is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the period. Diluted EPS reflects potential dilution and is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the period increased by the number of additional common shares that would have been outstanding if the potential common shares had been issued and were dilutive. The dilutive effect of unvested stock and warrants is calculated using the treasury-stock method and the dilutive effect of convertible securities is calculated using the if-converted method. Basic and diluted EPS for all periods presented are the same since the effect of our potentially dilutive securities are anti-dilutive to our net loss per share, as disclosed in Note 11 – Net Loss Per Share Attributable to Common Stockholders.

Share-Based Payment Arrangement [Policy Text Block]

Share-based Compensation

We recognize share-based compensation at fair value on the date of grant. The fair value is recognized as expense (net of any capitalization) over the requisite service period. For equity-classified share-based compensation awards, compensation cost is recognized based on the grant-date fair value using the quoted market price of our common stock and not subsequently remeasured. The fair value is recognized as expense, net of any capitalization, using the straight-line basis for awards that vest based on service conditions and using the graded-vesting attribution method for awards that vest based on performance conditions. We estimate the service periods for performance awards utilizing a probability assessment based on when we expect to achieve the performance conditions. For liability classified share-based compensation awards, compensation cost is initially recognized on the grant date using estimated payout levels. Compensation cost is subsequently adjusted quarterly to reflect the updated estimated payout levels based on the changes in our stock price. We account for forfeitures as they occur.

Income Tax, Policy [Policy Text Block]

Income Taxes

Provisions for income taxes are based on taxes payable or refundable for the current year and deferred taxes on temporary differences between the tax basis of assets and liabilities and their reported amounts in the Consolidated Financial Statements. Deferred tax assets and liabilities are included in the Consolidated Financial Statements at currently enacted income tax rates applicable to the period in which the deferred tax assets and liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the current period’s provision for income taxes. A valuation allowance is recorded to reduce the carrying value of our net deferred tax assets when it is more likely than not that a portion or all of the deferred tax assets will expire before realization of the benefit or future deductibility is not probable. We recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the tax position.

Segment Reporting, Policy [Policy Text Block]

Segments

The Company's chief operating decision maker allocates resources and assesses financial performance on a consolidated basis. As such, for purposes of financial reporting under GAAP during the years ended December 31, 2022 and 2021, the Company operated as a single operating segment.

Smaller Reporting Company [Policy Text Block]

Smaller Reporting Company

Under Rule 12b-2 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), the Company qualifies as a “smaller reporting company” because the value of its common stock held by non-affiliates as of the end of its most recently completed second fiscal quarter was less than $250 million. For as long as the Company remains a smaller reporting company, it may take advantage of certain exemptions from the SEC’s reporting requirements that are otherwise applicable to public companies that are not smaller reporting companies.

Note 3 - Prepaid Expenses and Other Current Assets (Tables)

12 Months Ended

Dec. 31, 2022

Schedule of Prepaid Expense and Other Current Assets [Table Text Block]

	*December 31,*		*December 31,*
	*2022*		*2021*
Prepaid subscriptions	$	423	$	85
Prepaid insurance		619		376
Prepaid marketing and sponsorships		—		60
Other		107		314
Total prepaid expenses and other current assets	$	1,149	$	835

Note 9 - Preferred Stock and Common Stock Warrants (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended				12 Months Ended
	Jan. 17, 2023	Mar. 31, 2022	Jul. 31, 2021	Apr. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Gain (Loss) on Revaluation of Warrants						$ (5,747)	$ (2,533)
Series A Convertible Preferred Stock [Member]
Temporary Equity, Shares Outstanding (in shares)						82,948	73,713	65,507
Temporary Equity, Par or Stated Value Per Share (in dollars per share)						$ 0.0001		$ 0.0001
Preferred Stock, Convertible, Conversion Price (in dollars per share)						$ 5.48
Series B Convertible Preferred Stock [Member]
Temporary Equity, Shares Outstanding (in shares)						79,239	70,433	62,612
Temporary Equity, Par or Stated Value Per Share (in dollars per share)						$ 0.0001		$ 0.0001
Preferred Stock, Convertible, Conversion Price (in dollars per share)						$ 5.53
Series C Convertible Preferred Stock [Member]
Temporary Equity, Shares Outstanding (in shares)						59,366	42,490
Temporary Equity, Par or Stated Value Per Share (in dollars per share)					$ 0.0001	$ 0.0001
Temporary Equity, Stock Issued During Period, Shares, New Issues (in shares)		10,500,000	5,000	10,000	24,500
Temporary Equity, Issued Price Per Share (in dollars per share)		$ 1,000	$ 1,000	$ 1,000	$ 1,000
Temporary Equity, Stock Issued During Period, Value, New Issues		$ 10,500	$ 5,000	$ 10,000	$ 24,500
Temporary Equity, Stock Issued During Period, Shares Issued for Services (in shares)		210,000	100	200	490
Preferred Stock, Convertible, Conversion Price (in dollars per share)						2.98
Convertible Preferred Stock [Member]
Temporary Equity, Issued Price Per Share (in dollars per share)						$ 1,000
Temporary Stock, Threshold Trading Days for Conversion (Day)						60 days
Temporary Stock, Threshold Consecutive Trading Days for Conversion (Day)						90 days
Temporary Stock, Conversion Price Minimum Percentage						175.00%
Temporary Stock, Maximum Business Days Following FID Event for Conversion (Day)						10 days
Temporary Equity, Dividend Rate Percentage						12.00%
Dividends, Preferred Stock, Paid-in-kind						$ 24,300	$ 18,300
Convertible Preferred Stock [Member] \| Subsequent Event [Member]
Dividends, Preferred Stock, Paid-in-kind	$ 6,700
Common Stock Warrants [Member]
Temporary Stock, Threshold Trading Days for Conversion (Day)						60 years
Temporary Stock, Threshold Consecutive Trading Days for Conversion (Day)						90 years
Exercise of Warrants, Percent of Fully Diluted Common Stock Acquirable						0.71%	0.86%
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)						$ 0.01
Warrants and Rights Outstanding, Term (Year)						3 years

Note 12 - Share-based Compensation - Summary of Share-based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Equity awards	$ (7,472)	$ 4,541
Liability awards	0	0
Total share-based compensation (forfeiture)	7,472	(4,541)
Capitalized share-based compensation	0	228
Total share-based compensation expense (forfeiture)	$ 7,472	$ (4,313)

Note 12 - Share-based Compensation - Summary of Restricted Stock Units Outstanding (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2022 $ / shares shares
Non-vested, Shares (in shares) \| shares	7,104
Non-vested, Weighted Average Grant Date Fair Value Per Share (in dollars per share) \| $ / shares	$ 3.31
Vested, Shares (in shares) \| shares	(1,261)
Vested, Weighted Average Grant Date Fair Value Per Share (in dollars per share) \| $ / shares	$ 6.17
Restricted Stock Units (RSUs) [Member]
Granted, Shares (in shares) \| shares	6,106
Granted, Weighted Average Grant Date Fair Value Per Share (in dollars per share) \| $ / shares	$ 6.52
Forfeited, Shares (in shares) \| shares	(1,645)
Forfeited, Weighted Average Grant Date Fair Value Per Share (in dollars per share) \| $ / shares	$ 3.61
Non-vested, Shares (in shares) \| shares	10,304
Non-vested, Weighted Average Grant Date Fair Value Per Share (in dollars per share) \| $ / shares	$ 4.82

Note 15 - Recent Accounting Pronouncements

12 Months Ended

Dec. 31, 2022

Accounting Standards Update and Change in Accounting Principle [Text Block]

Note 15 — Recent Accounting Pronouncements

The following table provides a brief description of recent accounting standards that have been adopted by the Company during the reporting period:

Standard		Description		Date of Adoption		Effect on our Consolidated Financial Statements or Other Significant Matters
ASU 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity's Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in Entity's Own Equity		This standard simplifies the accounting for convertible instruments primarily by eliminating the existing cash conversion and beneficial conversion models within Subtopic 470-20, which will result in fewer embedded conversion options being accounted for separately from the host. This standard also amends and simplifies the calculation of earnings per share relating to convertible instruments.		January 1, 2022		The Company adopted this standard using the modified retrospective approach, which did not have an effect on the Company's Consolidated Financial Statements.

The entire disclosure for change in accounting principle. Includes, but is not limited to, nature, reason, and method of adopting amendment to accounting standards or other change in accounting principle.

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+ Details

Note 6 - Leases (Details Textual)	Mar. 06, 2019 a	Dec. 31, 2022 ft²
BND [Member]
Area Available for Lease (Acre) \| a	984
Lessee, Operating Lease, Term of Contract (Year)	30 years
Lessee, Operating Lease, Number of Consecutive Renewal Term	2
Lessee, Operating Lease, Renewal Term (Year)	10 years
Houston, Texas [Member]
Area of Real Estate Property (Square Foot)		33,800
SINGAPORE
Area of Real Estate Property (Square Foot)		2,500

Note 12 - Share-based Compensation (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)
Percentage of FID Bonus Settlement of Shares	110.00%
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent	$ 0.2
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	$ 48.1
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	1 year 6 months
Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage of Target Award	0.00%
Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage of Target Award	100.00%
Performance Stock Units [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	3 years
Share-Based Payment Arrangement, Tranche Three [Member] \| Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	3 years
Share-Based Payment Arrangement, Tranche One [Member] \| Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	1 year
Share-Based Payment Arrangement, Tranche Two [Member] \| Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	2 years

Note 10 - Shareholders' Equity

12 Months Ended

Dec. 31, 2022

Stockholders' Equity Note Disclosure [Text Block]

Note 10 — Stockholders' Equity

Common Stock Purchase Agreements

On April 6, 2022, the Company entered into a common stock purchase agreement (the “Stock Purchase Agreement”) with HGC NEXT INV LLC (the “Purchaser”), pursuant to which the Company sold 4,618,226 shares of the Company's common stock to the Purchaser, at a purchase price of $6.496 per share for an aggregate purchase price of approximately $30 million. The consummation of the transactions contemplated by the Stock Purchase Agreement occurred on April 7, 2022.

On September 14, 2022, the Company entered into a common stock purchase agreement for a private placement (the “Private Placement”) with several institutional investors (collectively, the “Purchasers”), pursuant to which the Company agreed to sell, and the Purchasers severally agreed to purchase, an aggregate of 15,454,160 shares of the Company’s common stock at a purchase price of $5.50 per share for an aggregate purchase price of approximately $85.0 million. The Private Placement closed on September 19, 2022.

Common Stock Warrants

During the year ended December 31, 2022, Common Stock Warrants were exercised by certain holders of Series B Preferred Stock. In connection with the exercises of Common Stock Warrants, the Company issued an aggregate of approximately 0.5 million shares of Company common stock.

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

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+ Details

Note 8 - Accrued Liabilities and Other Current Liabilities

12 Months Ended

Dec. 31, 2022

Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]

Note 8 — Accrued Liabilities and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following (in thousands):

	*December 31,*		*December 31,*
	*2022*		*2021*
Employee compensation expense	$	6,650	$	4,358
Terminal asset costs		12,046		926
Permitting costs		279		—
Accrued legal services		3,124		70
Share-based compensation liability		182		182
Other accrued liabilities		903		437
Total accrued liabilities and other current liabilities	$	23,184	$	5,973

Note 6 - Leases (Tables)

12 Months Ended

Dec. 31, 2022

Lessee, Operating Lease Right-of-use Assets and Liabilities [Table Text Block]

		*December 31,*		*December 31,*
		*2022*		*2021*
Office leases	$	1,474	$	590
Total operating lease right-of-use assets, net	$	1,474	$	590

		*December 31,*		*December 31,*
		*2022*		*2021*
Office leases	$	1,093	$	596
Total current lease liabilities		1,093		596
Non-current office leases		465		—
Total lease liabilities	$	1,558	$	596

Lease, Cost [Table Text Block]

		*December 31,*		*December 31,*
		*2022*		*2021*
Office leases	$	887	$	627
Total operating lease expense		887		627
Short-term lease expense		232		278
Total lease expense	$	1,119	$	905

		*December 31,*		*December 31,*
		*2022*		*2021*
Cash paid for amounts included in the measurement of operating lease liabilities:
Cash flows from operating activities	$	678	$	624
Noncash right-of-use assets recorded for operating lease liabilities:
In exchange for new operating lease liabilities during the period		1,640		712

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

2023	$	1,300
2024		273
2025		250
2026		—
2027		—
Thereafter		—
Total undiscounted lease payments		1,823
Discount to present value		(265	)
Present value of lease liabilities	$	1,558

Note 12 - Share-based Compensation (Tables)

12 Months Ended

Dec. 31, 2022

Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]

	*Year Ended*
	*December 31,*
	*2022*		*2021*
Share-based compensation expense (forfeiture):
Equity awards	$	7,472	$	(4,541	)
Liability awards		—		—
Total share-based compensation (forfeiture)		7,472		(4,541	)
Capitalized share-based compensation		—		228
Total share-based compensation expense (forfeiture)	$	7,472	$	(4,313	)

Nonvested Restricted Stock Shares Activity [Table Text Block]

	*Shares*			*Weighted Average Grant Date Fair Value Per Share*
Non-vested at January 1, 2022		3,038		$	5.88
Granted		217			2.21
Vested		(1,507	)		4.29
Forfeited		(665	)		5.81
Non-vested at December 31, 2022		1,083		$	7.51

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

	*Shares*			*Weighted Average Grant Date Fair Value Per Share*
Non-vested at January 1, 2022		7,104			3.31
Granted		6,106			6.52
Vested		(1,261	)		6.17
Forfeited		(1,645	)		3.61
Non-vested at December 31, 2022		10,304		$	4.82

Note 3 - Prepaid Expenses and Other Current Assets - Summary of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Prepaid subscriptions	$ 423	$ 85
Prepaid insurance	619	376
Prepaid marketing and sponsorships	0	60
Other	107	314
Total prepaid expenses and other current assets	$ 1,149	$ 835

Note 6 - Leases - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Operating lease right-of-use assets, net	$ 1,474	$ 590
Current lease liabilities	1,093	596
Non-current leases	465	0
Lease liabilities	1,558	596
Office Leases [Member]
Operating lease right-of-use assets, net	1,474	590
Current lease liabilities	1,093	596
Non-current leases	$ 465	$ 0

Note 14 - Commitments and Contingencies (Details Textual) - BND [Member] $ in Millions	Mar. 06, 2019 USD ($) a
Area Available for Lease (Acre) \| a	984
Lessee, Operating Lease, Liability, to be Paid Per Quarter \| $	$ 1.6

Note 16 - Subsequent Events

12 Months Ended

Dec. 31, 2022

Subsequent Events [Text Block]

Note 16 — Subsequent Events

On February 3, 2023, we entered into a common stock purchase agreement (the “Stock Purchase Agreement”) for a private placement (the “Private Placement”) with HGC NEXT INV LLC and Ninteenth Investment Company LLC (the “Purchasers”), pursuant to which we agreed to sell, and the Purchasers severally agreed to purchase, an aggregate of 5,835,277 shares of the Company’s common stock at a purchase price of $5.998 per share, representing the average closing trading price of the Common Stock for the five trading days immediately preceding signing the Stock Purchase Agreement, for an aggregate purchase price of $35.0 million.

We have evaluated subsequent events through March 10, 2023, the date the financial statements were issued. Any material subsequent events that occurred during this time have been properly recognized and/or disclosed in these consolidated financial statements.

Note 9 - Preferred Stock and Common Stock Warrants - Fair Value Assumptions (Details)	Dec. 31, 2022	Dec. 31, 2021
Measurement Input, Share Price [Member]
Warrant measurement input	4.94	2.85
Measurement Input, Exercise Price [Member]
Warrant measurement input	0.01	0.01
Measurement Input, Risk Free Interest Rate [Member]
Warrant measurement input	0.046	0.001
Measurement Input, Price Volatility [Member]
Warrant measurement input	0.525	0.626
Measurement Input, Expected Term [Member]
Warrant measurement input	1.5	1.6

Note 16 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Feb. 03, 2023	Dec. 31, 2022	Dec. 31, 2021
Proceeds from Issuance of Common Stock		$ 115,000	$ 557
Private Placement [Member] \| Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues (in shares)	5,835,277
Shares Issued, Price Per Share (in dollars per share)	$ 5.998
Proceeds from Issuance of Common Stock	$ 35,000

Note 13 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	*Year Ended*
	*December 31,*
	*2022*			*2021*
U.S. federal statutory rate, beginning of year		21	%		21	%
Common stock warrant liabilities		(2	)		—
Officers' compensation		(1	)		—
Other		(1	)		(4	)
Valuation allowance		(17	)		(17	)
Effective tax rate as reported		—	%		—	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	*Year Ended*
	*December 31,*
	*2022*			*2021*
Deferred tax assets
Net operating loss carryforwards and credits	$	36,835		$	25,742
Employee compensation		1,113			570
Share-based compensation expense		1,066			2,053
Development costs		964			—
Property, plant and equipment		749			753
Operating lease liabilities		187			125
Other		36			55
Less: valuation allowance		(36,642	)		(26,378	)
Total deferred tax assets		4,308			2,920

Deferred tax liabilities
Operating lease right-of-use assets		(4,308	)		(2,920	)
Total deferred tax liabilities		(4,308	)		(2,920	)

Net deferred tax assets (liabilities)	$	—		$	—

Note 5 - Property, Plant and Equipment

12 Months Ended

Dec. 31, 2022

Property, Plant and Equipment Disclosure [Text Block]

Note 5 — Property, Plant and Equipment

Property, plant and equipment consisted of the following (in thousands):

	*December 31,*			*December 31,*
	*2022*			*2021*
Fixed Assets
Computers	$	780		$	633
Furniture, fixtures, and equipment		610			464
Leasehold improvements		101			101
Total fixed assets		1,491			1,198
Less: accumulated depreciation		(1,006	)		(844	)
Total fixed assets, net		485			354
Terminal and Pipeline Assets (not placed in service)
Terminal		197,144			152,445
Pipeline		21,017			21,017
Total Terminal and Pipeline assets		218,161			173,462
Total property, plant and equipment, net	$	218,646		$	173,816

Depreciation expense for the years ended December 31, 2022 and 2021 was $162 thousand and $184 thousand, respectively.

Note 8 - Accrued Liabilities and Other Current Liabilities (Tables)

12 Months Ended

Dec. 31, 2022

Schedule of Accrued Expenses and Other Current Liabilities [Table Text Block]

	*December 31,*		*December 31,*
	*2022*		*2021*
Employee compensation expense	$	6,650	$	4,358
Terminal asset costs		12,046		926
Permitting costs		279		—
Accrued legal services		3,124		70
Share-based compensation liability		182		182
Other accrued liabilities		903		437
Total accrued liabilities and other current liabilities	$	23,184	$	5,973

Note 11 - Net Loss Per Share Attributable to Common Stockholders (Tables)

12 Months Ended

Dec. 31, 2022

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Year Ended
	December 31,
	2022			2021
Weighted average common shares outstanding:
Basic		130,136			119,201
Dilutive unvested stock, convertible preferred stock, Common Stock Warrants and IPO Warrants		—			—
Diluted		130,136			119,201

Basic and diluted net loss per share attributable to common stockholders	$	(0.65	)	$	(0.34	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	*Year Ended*
	*December 31,*
	*2022*		*2021*
Unvested stock ⁽¹⁾		1,904		1,662
Convertible preferred stock		46,533		30,754
Common Stock Warrants		1,382		2,207
IPO Warrants⁽²⁾		—		12,082
Total potentially dilutive common shares		49,819		46,705

Note 9 - Preferred Stock and Common Stock Warrants (Tables)

12 Months Ended

Dec. 31, 2022

Schedule of Allocation of Net Cash Proceeds [Table Text Block]

				*Allocation of Proceeds*
						*2022 Series C*
				*2022 Series C*		*Preferred*
				*Warrants*		*Stock*
Gross proceeds	$	10,500
Equity issuance costs		(20	)
Net proceeds - Initial Fair Value Allocation	$	10,480		$	644	$	9,836
Per balance sheet upon issuance				$	644	$	9,836

				Allocation of Proceeds
						2021 Series C
				*2021 Series C*		*Preferred*
				*Warrants*		*Stock*
Gross proceeds	$	39,500
Equity issuance costs		(62	)
Net proceeds - Initial Fair Value Allocation	$	39,438		$	1,631	$	37,807
Per balance sheet upon issuance				$	1,631	$	37,807

Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

	*December 31,*			*December 31,*
	*2022*			*2021*
Stock price	$	4.94		$	2.85
Exercise price	$	0.01		$	0.01
Risk-free rate		4.6	%		0.1	%
Volatility		52.5	%		62.6	%
Term (years)		1.5			1.6

Consolidated Statements of Stockholders' Equity and Convertible Preferred Stock - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Series A Convertible Preferred Stock [Member]	Series B Convertible Preferred Stock [Member]	Series C Convertible Preferred Stock [Member]	Total
Balance (in shares) at Dec. 31, 2020	117,829	249
Balance at Dec. 31, 2020	$ 12	$ (1,031)	$ 209,481	$ (148,030)	$ 55,522	$ 56,781		$ 60,432
Share-based compensation			(4,541)					(4,541)
Restricted stock vesting (in shares)	660
Shares repurchased related to share-based compensation (in shares)	(97)	97
Shares repurchased related to share-based compensation		$ (284)						(284)
Issuance of common stock, net (in shares)	163
Issuance of common stock, net			316				$ 37,807	316
Stock dividend (in shares)	798
Exercise of common stock warrants (in shares)	1,485
Exercise of common stock warrants			4,365					4,365
Preferred stock dividends			(18,294)		8,206	7,821	2,200	(18,294)
Deemed dividends - accretion of beneficial conversion feature			(63)		63			(63)
Net Loss				(22,039)				(22,039)
Balance (in shares) at Dec. 31, 2021	120,838	346
Balance at Dec. 31, 2021	$ 12	$ (1,315)	191,264	(170,069)	63,791	64,602	40,007	19,892
Share-based compensation			7,472					7,472
Restricted stock vesting (in shares)	2,763
Shares repurchased related to share-based compensation (in shares)	(645)	645
Shares repurchased related to share-based compensation		$ (3,272)						(3,272)
Issuance of common stock, net (in shares)	20,073
Issuance of common stock, net	$ 2		111,066				9,836	$ 111,068
Exercise of common stock warrants (in shares)	520							500
Exercise of common stock warrants			3,564					$ 3,564
Preferred stock dividends			(24,282)		9,235	8,806	6,166	(24,282)
Net Loss				(60,071)				(60,071)
Balance (in shares) at Dec. 31, 2022	143,549	991
Balance at Dec. 31, 2022	$ 14	$ (4,587)	$ 289,084	$ (230,140)	$ 73,026	$ 73,408	$ 56,009	$ 54,371

Note 11 - Net Loss Per Share Attributable to Common Stockholders - Basic and Diluted Common Shares (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Weighted average shares outstanding - basic and diluted (in shares)	130,136	119,201
Dilutive unvested stock, convertible preferred stock, Common Stock Warrants and IPO Warrants (in shares)	0	0
Diluted (in shares)	130,136	119,201
Net loss per common share - basic and diluted (in dollars per share)	$ (0.65)	$ (0.34)

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

Note 6 - Leases - Maturity of Operating Lease (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
2023	$ 1,300
2024	273
2025	250
2026	0
2027	0
Thereafter	0
Total undiscounted lease payments	1,823
Discount to present value	(265)
Present value of lease liabilities	$ 1,558	$ 596

Note 1 - Background and Basis of Presentation (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Ending Balance	$ 62,789	$ 25,552	$ 22,608

Note 5 - Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2022