CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	2027 Notes	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock	Additional Paid in Capital	Additional Paid in Capital 2027 Notes	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
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)
Treasury stock (in shares) at Dec. 31, 2020														1,066,000
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 and restricted stock units (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)
Treasury stock (in shares) at Mar. 31, 2021														1,142,000
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)
Treasury stock (in shares) at Dec. 31, 2020														1,066,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Foreign currency translation adjustments	(56)
Net loss	(50,160)
Ending balance (in shares) at Sep. 30, 2021					28,017,000									1,161,000
Ending balance at Sep. 30, 2021	524,681				$ 560	634,895				(96,866)			(3,992)	$ (9,916)
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)
Treasury stock (in shares) at Dec. 31, 2020														1,066,000
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)
Treasury stock (in shares) at Dec. 31, 2021														1,181,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2020-06 [Member]
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)
Treasury stock (in shares) at Mar. 31, 2021														1,142,000
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 and restricted stock units (in shares)					28,000
Net issuance of restricted stock awards and restricted stock units	1				$ 1
Issuance of common stock for acquisition (in shares)					1,493,000
Issuance of common stock for acquisition	108,659				$ 30	108,629
Issuance of common stock, net of issuance costs (in shares)					2,353,000
Issuance of common stock, net of issuance costs	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)
Treasury stock (in shares) at Jun. 30, 2021														1,149,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon the exercise of stock options (in shares)					22,000
Issuance of common stock upon the exercise of stock options	200				$ 1	199
Net issuance of restricted stock awards and restricted stock units (in shares)					15,000
Net issuance of restricted stock awards and restricted stock units	0
Issuance of common stock for acquisition	1,081					1,081
Issuance of common stock, net of issuance costs (in shares)					982,000
Issuance of common stock, net of issuance costs	52,486	$ 63,068			$ 19	52,467	$ 63,068
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	(458)													$ (458)
Stock-based compensation	3,785					3,785
Foreign currency translation adjustments	(109)												(109)
Net loss	(31,933)									(31,933)
Ending balance (in shares) at Sep. 30, 2021					28,017,000									1,161,000
Ending balance at Sep. 30, 2021	$ 524,681				$ 560	634,895				(96,866)			(3,992)	$ (9,916)
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)
Treasury stock (in shares) at Dec. 31, 2021														1,181,000
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 and restricted stock units (in shares)					88,000
Net issuance of restricted stock awards and restricted stock units	1				$ 1
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)
Treasury stock (in shares) at Mar. 31, 2022														1,226,000
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)
Treasury stock (in shares) at Dec. 31, 2021														1,181,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon the exercise of stock options (in shares)	129,000
Foreign currency translation adjustments	$ (500)
Net loss	$ (55,838)
Ending balance (in shares) at Sep. 30, 2022	27,283,410				28,529,000
Ending balance at Sep. 30, 2022	$ 383,086				$ 569	592,100				(191,723)			(4,204)	$ (13,656)
Treasury stock (in shares) at Sep. 30, 2022														1,247,000
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)
Treasury stock (in shares) at Mar. 31, 2022														1,226,000
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					205
Net issuance of restricted stock awards and restricted stock units (in shares)					36,000
Net issuance of restricted stock awards and restricted stock units	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					28,331,000
Ending balance at Jun. 30, 2022	395,500				$ 565	582,064				(170,383)			(3,353)	$ (13,393)
Treasury stock (in shares) at Jun. 30, 2022														1,238,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon the exercise of stock options (in shares)					17,000
Issuance of common stock upon the exercise of stock options	250				$ 1	249
Net issuance of restricted stock awards and restricted stock units (in shares)					18,000
Net issuance of restricted stock awards and restricted stock units	0
Issuance of common stock for acquisition (in shares)					163,000
Issuance of common stock for acquisition	6,300				$ 3	6,297
Treasury stock acquired from employees upon vesting or forfeiture of restricted stock (in shares)														9,000
Treasury stock acquired from employees upon vesting or forfeiture of restricted stock	(263)													$ (263)
Stock-based compensation	3,490					3,490
Foreign currency translation adjustments	(851)												(851)
Net loss	$ (21,340)									(21,340)
Ending balance (in shares) at Sep. 30, 2022	27,283,410				28,529,000
Ending balance at Sep. 30, 2022	$ 383,086				$ 569	$ 592,100				$ (191,723)			$ (4,204)	$ (13,656)
Treasury stock (in shares) at Sep. 30, 2022														1,247,000