Income Taxes - Components of Income Before Taxes and of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
United States	$ 4,659	$ 16,990
Foreign	4,481	346
Income before income taxes	9,140	17,336
Federal
Current	0	0
Deferred	4,072	6,251
Total	4,072	6,251
State
Current	(2)	(88)
Deferred	121	702
Total	119	614
Foreign
Current	1,597	723
Deferred	0	0
Total	1,597	723
Total
Current	1,595	635
Deferred	4,193	6,953
Effective income tax expense	5,788	7,588
Reconciliation of the federal income tax expense at the statutory rate to the effective income tax expense
Statutory federal income tax expense	1,844	3,640
State taxes, net of federal benefit	119	633
Foreign tax paid	0	0
Foreign jurisdiction rate differential	705	508
Permanent differences-nondeductible executive compensation	2,042	2,748
Permanent differences and other	1,078	59
Effective income tax expense	5,788	$ 7,588
Subpart F income from foreign operations, amount	$ 1,400