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Income Taxes - Reconciliation to Federal Statutory Income Tax Rate (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Abstract]      
Income taxes at U.S. federal statutory rate $ 3,797 $ 4,846 $ 3,945
Provision-to-return adjustments (539) 117 455
State income tax, net of federal tax effect 428 509 908
Tax credits (1,254) (1,274) (958)
Contingent consideration (406) 0 0
Stock-based compensation (112) (74) 255
Non-deductible compensation - 162(m) 306 510 0
Other (6) 12 (67)
Total income tax provision $ 2,214 $ 4,646 $ 4,538