Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common stock	Additional paid-in capital	Accumulated other comprehensive income	Accumulated deficit	Total
Balance at Beginning of period at Dec. 31, 2021	$ 15	$ 250,064	$ (52)	$ (229,929)	$ 20,098
Balance at Beginning of period (in shares) at Dec. 31, 2021	14,529,577
Vesting of common stock previously subject to repurchase (in shares)	27
Vesting of share-based awards and exercise of stock options		7			7
Vesting of share-based awards and exercise of stock options (in shares)	40,062
Shares withheld for employee taxes		(153)			(153)
Shares withheld for employee taxes (in shares)	(12,918)
Foreign currency translation adjustment			47		47
Stock-based compensation expense		901			901
Net loss				(10,862)	(10,862)
Balance at Ending period at Mar. 31, 2022	$ 15	250,819	(5)	(240,791)	10,038
Balance at Ending period (in shares) at Mar. 31, 2022	14,556,748
Balance at Beginning of period at Dec. 31, 2022	$ 19	288,361	150	(274,225)	14,305
Balance at Beginning of period (in shares) at Dec. 31, 2022	19,165,027
Vesting of share-based awards and exercise of stock options		44			$ 44
Vesting of share-based awards and exercise of stock options (in shares)	88,588				9,922
Shares withheld for employee taxes		(279)			$ (279)
Shares withheld for employee taxes (in shares)	(25,838)
Foreign currency translation adjustment			(30)		(30)
Stock-based compensation expense		1,128			1,128
Net loss				(12,027)	(12,027)
Balance at Ending period at Mar. 31, 2023	$ 19	$ 289,254	$ 120	$ (286,252)	$ 3,141
Balance at Ending period (in shares) at Mar. 31, 2023	19,227,777