Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]
Beginning Balance at Dec. 31, 2020		$ 41	$ 287,059	$ (871)	$ (188)	$ (206,438)
Beginning Balance, shares at Dec. 31, 2020		40,152,021
Treasury shares, beginning Balance at Dec. 31, 2020				(135,000)
Issuance of common stock upon exercise of stock options and pursuant to restricted stock units		$ 0	631
Issuance of common stock upon exercise of stock options and pursuant to restricted stock units, shares		794,551
Common stock issued upon acquisition		$ 0	0
Stock-based compensation expense			5,085
Withholding tax on restricted stock			0
Foreign currency translation adjustment	$ (174)				(174)
Net (loss) income						6,000
Ending Balance at Jun. 30, 2021	91,145	$ 41	292,775	$ (871)	(362)	(200,438)
Ending Balance, shares at Jun. 30, 2021		40,946,572
Treasury stock, Ending Balance at Jun. 30, 2021				(135,000)
Beginning Balance at Mar. 31, 2021		$ 40	290,403	$ (871)	(397)	(201,308)
Beginning Balance, shares at Mar. 31, 2021		40,412,577
Treasury shares, beginning Balance at Mar. 31, 2021				(135,000)
Issuance of common stock upon exercise of stock options and pursuant to restricted stock units		$ 0	(378)
Issuance of common stock upon exercise of stock options and pursuant to restricted stock units, shares		533,995
Common stock issued upon acquisition		$ 1	0
Stock-based compensation expense			2,750
Withholding tax on restricted stock			0
Foreign currency translation adjustment	35				35
Net (loss) income						870
Ending Balance at Jun. 30, 2021	91,145	$ 41	292,775	$ (871)	(362)	(200,438)
Ending Balance, shares at Jun. 30, 2021		40,946,572
Treasury stock, Ending Balance at Jun. 30, 2021				(135,000)
Beginning Balance at Dec. 31, 2021	$ 96,260	$ 41	298,793	$ (871)	(662)	(201,041)
Beginning Balance, shares at Dec. 31, 2021		41,384,643
Treasury shares, beginning Balance at Dec. 31, 2021	(135,000)			(135,000)
Issuance of common stock upon exercise of stock options and pursuant to restricted stock units		$ 0	99
Issuance of common stock upon exercise of stock options and pursuant to restricted stock units, shares		644,932
Common stock issued upon acquisition		$ 1	1,987
Stock-based compensation expense			7,435
Withholding tax on restricted stock			(7)
Foreign currency translation adjustment	$ (1,100)				(1,100)
Net (loss) income						(1,938)
Ending Balance at Jun. 30, 2022	$ 102,737	$ 42	308,307	$ (871)	(1,762)	(202,979)
Ending Balance, shares at Jun. 30, 2022		42,029,575
Treasury stock, Ending Balance at Jun. 30, 2022	(135,000)			(135,000)
Beginning Balance at Mar. 31, 2022		$ 42	304,506	$ (871)	(905)	(202,678)
Beginning Balance, shares at Mar. 31, 2022		41,685,163
Treasury shares, beginning Balance at Mar. 31, 2022				(135,000)
Issuance of common stock upon exercise of stock options and pursuant to restricted stock units		$ 0	(1)
Issuance of common stock upon exercise of stock options and pursuant to restricted stock units, shares		344,412
Common stock issued upon acquisition			0
Stock-based compensation expense			3,809
Withholding tax on restricted stock			(7)
Foreign currency translation adjustment	$ (857)				(857)
Net (loss) income						(301)
Ending Balance at Jun. 30, 2022	$ 102,737	$ 42	$ 308,307	$ (871)	$ (1,762)	$ (202,979)
Ending Balance, shares at Jun. 30, 2022		42,029,575
Treasury stock, Ending Balance at Jun. 30, 2022	(135,000)			(135,000)