Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common stock Underwritten public offering	Common stock	Additional paid-in capital Underwritten public offering	Additional paid-in capital	Accumulated other comprehensive income (loss)	Accumulated deficit	Underwritten public offering	Total
Beginning Balance at Dec. 31, 2020		$ 32		$ 451,433	$ 2,434	$ (247,774)		$ 206,125
Beginning balance (in shares) at Dec. 31, 2020		31,796,544
Increase (Decrease) in Stockholders' Equity
Exercised warrants (in shares)		7,347
Exercised stock options		$ 1		5,468				5,469
Exercised stock options (in shares)		392,379
Restricted units converted (in shares)		133,732
ESPP stock purchase				519				519
ESPP stock purchase (in shares)		17,225
Issuance of common stock	$ 4		$ 269,714				$ 269,718
Issuance of common stock (in shares)	4,107,142
Stock-based compensation expense				7,036				7,036
Cumulative translation adjustment					(856)			(856)
Net loss						(22,001)		(22,001)
Ending Balance at Jun. 30, 2021		$ 37		734,170	1,578	(269,775)		466,010
Ending Balance (in shares) at Jun. 30, 2021		36,454,369
Beginning Balance at Mar. 31, 2021		$ 36		728,128	1,183	(257,878)		471,469
Beginning balance (in shares) at Mar. 31, 2021		36,294,928
Increase (Decrease) in Stockholders' Equity
Exercised stock options		$ 1		2,392				2,393
Exercised stock options (in shares)		111,055
Restricted units converted (in shares)		48,386
Stock-based compensation expense				3,650				3,650
Cumulative translation adjustment					395			395
Net loss						(11,897)		(11,897)
Ending Balance at Jun. 30, 2021		$ 37		734,170	1,578	(269,775)		466,010
Ending Balance (in shares) at Jun. 30, 2021		36,454,369
Increase (Decrease) in Stockholders' Equity
Accumulated other comprehensive income								441
Beginning Balance at Dec. 31, 2021		$ 37		745,936	441	(305,462)		440,952
Beginning balance (in shares) at Dec. 31, 2021		36,768,035
Increase (Decrease) in Stockholders' Equity
Exercised stock options				596				596
Exercised stock options (in shares)		84,536
Restricted units converted (in shares)		99,034
ESPP stock purchase				594				594
ESPP stock purchase (in shares)		20,449
Issuance of common stock (in shares)		2,773
Stock-based compensation expense				9,013				9,013
Cumulative translation adjustment					(2,644)			(2,644)
Net loss						(43,055)		(43,055)
Ending Balance at Jun. 30, 2022		$ 37		756,139	(2,203)	(348,517)		405,456
Ending Balance (in shares) at Jun. 30, 2022		36,974,827
Beginning Balance at Mar. 31, 2022		$ 37		750,742	(756)	(323,615)		426,408
Beginning balance (in shares) at Mar. 31, 2022		36,899,156
Increase (Decrease) in Stockholders' Equity
Exercised stock options				211				211
Exercised stock options (in shares)		24,410
Restricted units converted (in shares)		49,826
Issuance of common stock (in shares)		1,435
Stock-based compensation expense				5,186				5,186
Cumulative translation adjustment					(1,447)			(1,447)
Net loss						(24,902)		(24,902)
Ending Balance at Jun. 30, 2022		$ 37		$ 756,139	$ (2,203)	$ (348,517)		405,456
Ending Balance (in shares) at Jun. 30, 2022		36,974,827
Increase (Decrease) in Stockholders' Equity
Accumulated other comprehensive income								$ (2,203)