CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock	Additional Paid in Capital	Additional Paid in Capital Cumulative Effect, Period of Adoption, Adjustment	Additional Paid in Capital Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury Stock (in shares)												1,066,000
Beginning Balance (in shares) at Dec. 31, 2020				22,983,000
Beginning Balance at Dec. 31, 2020	$ 188,405			$ 459	$ 243,575			$ (46,706)			$ (3,936)	$ (4,987)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon the exercise of stock options (in shares)				34,000
Issuance of common stock upon the exercise of stock options	409			$ 1	408
Net issuance of restricted stock awards (in shares)				87,000
Net issuance of restricted stock awards and restricted stock units	265			$ 2	263
Treasury stock acquired from employees upon vesting or forfeiture of restricted stock (in shares)												76,000
Treasury stock acquired from employees upon vesting or forfeiture of restricted stock	(3,974)											$ (3,974)
Stock-based compensation	1,320				1,320
Foreign currency translation adjustments	(302)										(302)
Net loss	(8,271)							(8,271)
Ending Balance (in shares) at Mar. 31, 2021				23,104,000
Ending Balance at Mar. 31, 2021	177,852			$ 462	245,566			(54,977)			(4,238)	(8,961)
Beginning Balance (in shares) at Dec. 31, 2020				22,983,000
Beginning Balance at Dec. 31, 2020	188,405			$ 459	243,575			(46,706)			(3,936)	(4,987)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Foreign currency translation adjustments	53
Net loss	(18,227)
Ending Balance (in shares) at Jun. 30, 2021				26,998,000
Ending Balance at Jun. 30, 2021	436,561			$ 540	514,295			(64,933)			(3,883)	(9,458)
Beginning Balance (in shares) at Dec. 31, 2020				22,983,000
Beginning Balance at Dec. 31, 2020	$ 188,405			$ 459	243,575			(46,706)			(3,936)	(4,987)
Ending Balance (in shares) at Dec. 31, 2021	26,924,397			28,095,000
Ending Balance at Dec. 31, 2021	$ 504,345	$ (80,036)	$ 424,309	$ 562	640,937	$ (66,656)	$ 574,281	(122,505)	$ (13,380)	$ (135,885)	(3,704)	$ (10,945)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2020-06 [Member]
Treasury Stock (in shares)												1,142,000
Beginning Balance (in shares) at Mar. 31, 2021				23,104,000
Beginning Balance at Mar. 31, 2021	$ 177,852			$ 462	245,566			(54,977)			(4,238)	$ (8,961)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon the exercise of stock options (in shares)				20,000
Issuance of common stock upon the exercise of stock options	209				209
Net issuance of restricted stock awards (in shares)				28,000
Net issuance of restricted stock awards and restricted stock units	1			$ 1
Issuance of restricted stock for acquisition (in shares)				1,493,000
Stock Issued During Period, Value, Acquisitions	108,659			$ 30	108,629
Issuance of common stock (in shares)				2,353,000
Issuance of common stock	155,687			$ 47	155,640
Treasury stock acquired from employees upon vesting or forfeiture of restricted stock (in shares)												7,000
Treasury stock acquired from employees upon vesting or forfeiture of restricted stock	(497)											$ (497)
Stock-based compensation	4,251				4,251
Foreign currency translation adjustments	355										355
Net loss	(9,956)							(9,956)
Ending Balance (in shares) at Jun. 30, 2021				26,998,000
Ending Balance at Jun. 30, 2021	$ 436,561			$ 540	514,295			(64,933)			(3,883)	$ (9,458)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury Stock (in shares)												1,149,000
Treasury Stock (in shares)												1,181,000
Beginning Balance (in shares) at Dec. 31, 2021	26,924,397			28,095,000
Beginning Balance at Dec. 31, 2021	$ 504,345	(80,036)	424,309	$ 562	640,937	(66,656)	574,281	(122,505)	(13,380)	(135,885)	(3,704)	$ (10,945)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon the exercise of stock options (in shares)				96,000
Issuance of common stock upon the exercise of stock options	813			$ 2	811
Net issuance of restricted stock awards (in shares)				88,000
Net issuance of restricted stock awards and restricted stock units	1			$ 1	0
Treasury stock acquired from employees upon vesting or forfeiture of restricted stock (in shares)												45,000
Treasury stock acquired from employees upon vesting or forfeiture of restricted stock	(2,051)											$ (2,051)
Stock-based compensation	3,536				3,536
Foreign currency translation adjustments	512										512
Net loss	(15,650)							(15,650)
Ending Balance (in shares) at Mar. 31, 2022				28,279,000
Ending Balance at Mar. 31, 2022	$ 411,470			$ 565	578,628			(151,535)			(3,192)	(12,996)
Beginning Balance (in shares) at Dec. 31, 2021	26,924,397			28,095,000
Beginning Balance at Dec. 31, 2021	$ 504,345	$ (80,036)	$ 424,309	$ 562	640,937	$ (66,656)	$ 574,281	(122,505)	$ (13,380)	$ (135,885)	(3,704)	(10,945)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon the exercise of stock options (in shares)	112,000
Foreign currency translation adjustments	$ 351
Net loss	$ (34,498)
Ending Balance (in shares) at Jun. 30, 2022	27,093,634			28,331,000
Ending Balance at Jun. 30, 2022	$ 395,500			$ 565	582,064			(170,383)			(3,353)	$ (13,393)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury Stock (in shares)												1,226,000
Beginning Balance (in shares) at Mar. 31, 2022				28,279,000
Beginning Balance at Mar. 31, 2022	411,470			$ 565	578,628			(151,535)			(3,192)	$ (12,996)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon the exercise of stock options (in shares)				16,000
Issuance of common stock upon the exercise of stock options	205			$ 0	205
Net issuance of restricted stock awards (in shares)				36,000
Net issuance of restricted stock awards and restricted stock units	0			$ 0	0
Treasury stock acquired from employees upon vesting or forfeiture of restricted stock (in shares)												12,000
Treasury stock acquired from employees upon vesting or forfeiture of restricted stock	(397)											$ (397)
Stock-based compensation	3,231				3,231
Foreign currency translation adjustments	(161)										(161)
Net loss	$ (18,848)							(18,848)
Ending Balance (in shares) at Jun. 30, 2022	27,093,634			28,331,000
Ending Balance at Jun. 30, 2022	$ 395,500			$ 565	$ 582,064			$ (170,383)			$ (3,353)	$ (13,393)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury Stock (in shares)												1,238,000