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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Income Tax Disclosure [Abstract] |  |  |
Provision at federal statutory tax rate, amount | $ 1,392 | $ (4,821) | $ (10,857)
Provision at federal statutory tax rate, percent | 21.00% | 21.00% | 21.00%
Incentive stock options, Amount | $ 647 | $ 286 | $ 266
Incentive stock options, percent | 9.80% | (1.20%) | (0.50%)
State income taxes, amount | $ 360 | $ (446) | $ (2,003)
State income taxes, percent | 5.40% | 1.90% | 3.90%
Transaction costs, amount | $ (1,226) |  |
Transaction costs, percentage | (18.50%) | 0.00% | 0.00%
Valuation allowance, amount | $ (675) | $ 4,999 | $ 12,363
Valuation allowance, percent | (10.20%) | (21.80%) | (23.90%)
Change in fair value of warrant liabilities, Amount | $ (517) |  |
Change in fair value of warrant liabilities, percentage | (7.80%) | 0.00% | 0.00%
Other, amount | $ 189 | $ 145 | $ 485
Other, percent | 2.90% | (0.60%) | (1.00%)
Effective tax rate, amount | $ 170 | $ 163 | $ 254
Effective tax rate, percent | 2.60% | (0.70%) | (0.50%)

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