Income Taxes - Schedule of Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pre-tax (loss) / income
Domestic	$ (17,030)	$ 5,320	$ 370
Foreign	4,050	(295)	1,600
(Loss) income before income taxes	(12,980)	5,025	1,970
Current tax expense / (benefit):
Federal	(165)	(94)	(604)
State	(36)	205	289
Foreign	744	109	283
Total current tax expense / (benefit)	543	220	(32)
Deferred tax expense / (benefit):
Federal	(3,506)	(4,559)	(1,010)
State	(464)	(343)	(105)
Foreign	170	(91)
Change in valuation allowance	3,970	6,300
Total deferred tax expense / ( benefit)	170	1,307	(1,115)
Total tax expense / (benefit):
Federal	(3,671)	(4,653)	(1,614)
State	(500)	(138)	184
Foreign	914	18	283
Change in valuation allowance	3,970	6,300
Total income tax expense (benefit)	$ 713	$ 1,527	$ (1,147)