Unaudited Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative effect of ASC 326 adoption	Common stock	Additional paid-in capital	Accumulated other comprehensive loss	Accumulated deficit	Accumulated deficit Cumulative effect of ASC 326 adoption
Beginning Balance, Stockholders' equity at Dec. 31, 2020	$ 93,579		$ 22	$ 147,997	$ (2,124)	$ (52,316)
Beginning Balances, Stockholders' equity (in shares) at Dec. 31, 2020			21,958
Issuance of common stock in public offering, net of issuance costs	59,525		$ 5	59,520
Issuance of common stock in public offering, net of issuance costs (in shares)			4,600
Exercise of stock awards and employee stock plan purchases	2,569			2,569
Exercise of stock awards and employee stock plan purchases (in shares)			325
Stock-based compensation	1,352			1,352
Net income (loss)	(23,225)					(23,225)
Other comprehensive loss	(2,298)				(2,298)
Ending Balances, Stockholders' equity at Mar. 31, 2021	131,502		$ 27	211,438	(4,422)	(75,541)
Ending Balances, Stockholders' equity (in shares) at Mar. 31, 2021			26,883
Beginning Balance, Stockholders' equity at Dec. 31, 2020	93,579		$ 22	147,997	(2,124)	(52,316)
Beginning Balances, Stockholders' equity (in shares) at Dec. 31, 2020			21,958
Net income (loss)	(26,504)
Ending Balances, Stockholders' equity at Jun. 30, 2021	132,483		$ 27	215,399	(4,123)	(78,820)
Ending Balances, Stockholders' equity (in shares) at Jun. 30, 2021			27,192
Beginning Balance, Stockholders' equity at Mar. 31, 2021	131,502		$ 27	211,438	(4,422)	(75,541)
Beginning Balances, Stockholders' equity (in shares) at Mar. 31, 2021			26,883
Exercise of stock awards and employee stock plan purchases	1,967			1,967
Exercise of stock awards and employee stock plan purchases (in shares)			309
Stock-based compensation	1,994			1,994
Net income (loss)	(3,279)					(3,279)
Other comprehensive loss	299				299
Ending Balances, Stockholders' equity at Jun. 30, 2021	132,483		$ 27	215,399	(4,123)	(78,820)
Ending Balances, Stockholders' equity (in shares) at Jun. 30, 2021			27,192
Beginning Balance, Stockholders' equity at Dec. 31, 2021	$ 131,907	$ (401)	$ 27	223,336	(4,457)	(86,999)	$ (401)
Beginning Balances, Stockholders' equity (in shares) at Dec. 31, 2021	27,505		27,505
Exercise of stock awards and employee stock plan purchases	$ 156			156
Exercise of stock awards and employee stock plan purchases (in shares)			98
Stock-based compensation	2,671			2,671
Net income (loss)	(3,048)					(3,048)
Subsidiary dissolution	(68)				(68)
Other comprehensive loss	(268)				(268)
Ending Balances, Stockholders' equity at Mar. 31, 2022	130,949		$ 27	226,163	(4,793)	(90,448)
Ending Balances, Stockholders' equity (in shares) at Mar. 31, 2022			27,603
Beginning Balance, Stockholders' equity at Dec. 31, 2021	$ 131,907	$ (401)	$ 27	223,336	(4,457)	(86,999)	$ (401)
Beginning Balances, Stockholders' equity (in shares) at Dec. 31, 2021	27,505		27,505
Net income (loss)	$ (9,076)
Ending Balances, Stockholders' equity at Jun. 30, 2022	$ 124,088		$ 27	229,969	(9,432)	(96,476)
Ending Balances, Stockholders' equity (in shares) at Jun. 30, 2022	27,784		27,784
Beginning Balance, Stockholders' equity at Mar. 31, 2022	$ 130,949		$ 27	226,163	(4,793)	(90,448)
Beginning Balances, Stockholders' equity (in shares) at Mar. 31, 2022			27,603
Exercise of stock awards and employee stock plan purchases	938			938
Exercise of stock awards and employee stock plan purchases (in shares)			181
Stock-based compensation	2,868			2,868
Net income (loss)	(6,028)					(6,028)
Other comprehensive loss	(4,639)				(4,639)
Ending Balances, Stockholders' equity at Jun. 30, 2022	$ 124,088		$ 27	$ 229,969	$ (9,432)	$ (96,476)
Ending Balances, Stockholders' equity (in shares) at Jun. 30, 2022	27,784		27,784