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Income Taxes - Reconciliation of Differences between Federal Statutory and Effective Income Tax Rate (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Tax Disclosure [Abstract] |  |  |
At statutory rate | $ (821) | $ (12,535) | $ 5,245
State taxes, net of U.S. federal benefit | (162) | (757) | (99)
Foreign taxes | 0 | 0 | (223)
Federal tax deductions | (3,299) | 357 | (5)
Change in applicable tax rate | 26 | 286 | 478
Provision to return permanent difference | (17) | 340 | (20)
R&D credits | (209) | 67 | (159)
Fuel tax credit | (142) | (125) | (90)
Foreign tax credit | 0 | 0 | 153
Foreign branch loss | 0 | 0 | 50
Gain on bargain purchase | 0 | 0 | (8,316)
Unrecognized tax benefits | 70 | 2,163 | 0
NOL carryback/carryforward | 14 | 1,186 | (10,046)
Nondeductible asset basis | 909 | 0 | 0
Compensation deduction limitation | 426 | 0 | 0
Other | 0 | 0 | 52
Total income tax benefit | $ (3,205) | $ (9,017) | $ (12,980)

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