CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive (Loss) Income	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2020		33,499,953
Beginning balance at Dec. 31, 2020	$ 210,918	$ 3	$ 364,248	$ 599	$ (153,932)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued upon exercise of options (in shares)		32,272
Common stock issued upon exercise of options	272		272
Issuance of common stock for vesting of restricted stock units (in shares)		214,324
Shares repurchased for withholding tax on restricted stock units (in shares)		(88,360)
Shares repurchased for withholding tax on restricted stock units	(5,506)		(5,506)
Issuance of common stock under cashless warrant exercise (in shares)		312,175
Stock-based compensation expense	1,001		1,001
Net (loss) income	4,940				4,940
Foreign currency translation gain	223			223
Ending balance (in shares) at Mar. 31, 2021		33,970,364
Ending balance at Mar. 31, 2021	$ 211,848	$ 3	360,015	822	(148,992)
Beginning balance (in shares) at Dec. 31, 2021	44,618,357	44,618,357
Beginning balance at Dec. 31, 2021	$ 635,180	$ 4	777,074	(1,382)	(140,516)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued upon exercise of options (in shares)	7,765	7,765
Common stock issued upon exercise of options	$ 70		70
Issuance of common stock for vesting of restricted stock units (in shares)		278,002
Shares repurchased for withholding tax on restricted stock units (in shares)		(81,357)
Shares repurchased for withholding tax on restricted stock units	(1,589)		(1,589)
Issuance of common stock under cashless warrant exercise (in shares)		99
Stock-based compensation expense	2,908		2,908
Net (loss) income	(23,296)				(23,296)
Foreign currency translation gain	$ 2,184			2,184
Ending balance (in shares) at Mar. 31, 2022	44,822,866	44,822,866
Ending balance at Mar. 31, 2022	$ 615,457	$ 4	$ 778,463	$ 802	$ (163,812)