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Income Taxes (Tables) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Income Taxes |  |
Schedule of components of provision (benefit) for income taxes |  | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2023 |  | 2022
Current: | ​ | ​ | ​ | ​ | ​ | ​
Federal | ​ | $ | 272 | ​ | $ | —
State | ​ |  | 7 | ​ |  | 5
Total current | ​ |  | 279 | ​ |  | 5
Deferred: | ​ |  | ​ | ​ |  |
Federal | ​ |  | (71) | ​ |  | 1,096
State | ​ |  | — | ​ |  | 104
Total deferred | ​ |  | (71) | ​ |  | 1,200
Total income tax provision | ​ | $ | 208 | ​ | $ | 1,205
Schedule of deferred tax (liabilities) assets, net |  | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2023 |  | 2022
Deferred Tax Assets: | ​ | ​ | ​ | ​ | ​ | ​
Impairment | ​ | $ | 1,134 | ​ | $ | 1,147
Accruals | ​ |  | 107 | ​ |  | 108
Reserves | ​ |  | 52 | ​ |  | 75
Interest carryforward | ​ |  | 31 | ​ |  | 31
Net operating losses | ​ |  | 3,849 | ​ |  | 2,387
Other | ​ |  | 60 | ​ |  | 40
Financial instruments | ​ | ​ | 1,392 | ​ | ​ | —
Start-up costs | ​ | ​ | 982 | ​ | ​ | —
UNICAP 263A | ​ |  | 175 | ​ |  | 395
Valuation allowance | ​ |  | (7,011) | ​ |  | (3,583)
Total deferred tax assets | ​ | $ | 771 | ​ |  | 600
Deferred Tax Liabilities: | ​ | ​ | ​ | ​ | ​ | ​
Prepaid Expense | ​ | $ | (162) | ​ |  | (24)
Other | ​ |  | (30) | ​ |  | (157)
Depreciation | ​ |  | (597) | ​ |  | (509)
Total deferred tax liabilities | ​ |  | (789) | ​ |  | (690)
Deferred tax (liabilities) assets, net | ​ | $ | (18) | ​ | $ | (90)
Schedule of total provision (benefit) for income taxes varies from federal statutory rate |  | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2023 |  | 2022 |
Loss before income tax expense | ​ | $ | (22,060) | ​ | $ | (12,085) | ​
Statutory tax rate | ​ |  | 21 | % |  | 21 | %
Income tax (benefit) expense at federal statutory rate | ​ |  | (4,633) | ​ |  | (2,538) | ​
Increase (decrease) resulting from: | ​ |  | ​ | ​ |  |  | ​
Permanent differences | ​ |  | 2,300 | ​ |  | 494 | ​
State income tax, net of federal benefit | ​ |  | (177) | ​ |  | (343) | ​
Valuation allowance | ​ |  | 3,428 | ​ |  | 3,583 | ​
Other, net | ​ |  | (710) | ​ |  | 9 | ​
Income tax expense | ​ |  | 208 | ​ |  | 1,205 | ​
Current income tax expense | ​ |  | 279 | ​ |  | 5 | ​
Deferred income tax (benefit) | ​ |  | (71) | ​ |  | 1,200 | ​
Total | ​ | $ | 208 | ​ | $ | 1,205 | ​
Schedule of changes in valuation allowance |  | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2023 |  | 2022
Balance, beginning of the year | ​ | $ | 3,583 | ​ | $ | —
Additions to valuation allowance | ​ | ​ | 3,428 | ​ |  | 3,583
Balance, end of the year | ​ | ​ | 7,011 | ​ |  | 3,583
Schedule of reconciliation of unrecognized tax benefits |  | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2023 |  | 2022
Balance, beginning of the year | ​ | $ | — | ​ | $ | —
Additions | ​ |  | — | ​ |  | —
Balance, end of the year | ​ |  | — | ​ |  | —
Schedule of effective income tax rates | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2024 |  | 2023 |
Three months ended March 31, | ​ | ​ | (0.78) | % | (7.97) | %

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 9 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-9 + Details
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