Income Taxes - Summary of Elements of Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets
Accrued vacation and other accrued expenses	$ 1,486	$ 166	$ 97
Provision for credit losses	2,755	513	180
Net operating losses	199	206	445
Stock based compensation	1,739	1,424	609
State income taxes	10,991	4,306	8
Foreign	1,808	1,220	545
Credits			680
Lease liability	1,643	226	643
Equity loss in investment	700	700
Other	599	89
Gross deferred tax assets	21,920	8,850	3,207
Less: Valuation allowance	(2,609)	(2,021)	(2,125)
Net deferred tax assets	19,311	6,829	1,082
Deferred tax liabilities
Intangible assets	8,083
Depreciation	7,371	4,830	419
Right of use asset	1,640	224	633
Other	1,458	147	30
Total deferred tax liabilities	18,552	5,201	$ 1,082
Net deferred tax assets	$ 759	$ 1,628