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Income Taxes - Components of Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Deferred tax assets: |  |
Accrued expenses | $ 2,096 | $ 850
Allowance for doubtful accounts | 71 | 81
Intangibles | 784 | 987
Goodwill | 3,746 | 4,257
Startup costs | 91 | 101
Percentage of completion | 0 | 105
Stock-based compensation | 501 | 679
Net operating losses and credits | 0 | 841
Interest | 0 | 507
Lease liabilities | 5,268 | 5,960
Accrued bonuses and commissions | 2,030 | 6
Warrant | 535 | 101
Other | 0 | 69
Total deferred tax assets | 15,122 | 14,544
Deferred tax liabilities: |  |
Fixed assets | (3,813) | (3,897)
Right-of-use assets | (4,975) | (5,586)
Debt discounts | (155) | (275)
Percentage of completion | (92) | 0
Total deferred tax liabilities | (9,035) | (9,758)
Net deferred tax asset | $ 6,087 | $ 4,786

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