CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive (Loss) Income.	Total
Balance, Value at Dec. 31, 2021	$ 53	$ 708,585	$ (480,758)	$ (358)	$ 227,522
Balance, Shares at Dec. 31, 2021	53,480,812
Stock-based compensation expense		4,266			4,266
Shares issued upon exercise of stock options, value		3			3
Shares issued upon exercise of stock options, shares	470
Shares issued upon vesting of restricted stock units, value		1,438			1,438
Shares issued upon vesting of restricted stock units, shares	109,943
Net loss			(27,749)		(27,749)
Other comprehensive income (loss)				(1,365)	(1,365)
Balance, Value at Mar. 31, 2022	$ 53	714,292	(508,507)	(1,723)	204,115
Balance, Shares at Mar. 31, 2022	53,591,225
Balance, Value at Dec. 31, 2022	$ 53	726,630	(566,232)	(1,672)	158,779
Balance, Shares at Dec. 31, 2022	53,797,341
Stock-based compensation expense		2,972			2,972
Shares issued upon exercise of stock options, value	$ 1	559			$ 560
Shares issued upon exercise of stock options, shares	93,218				93,218
Shares issued upon vesting of restricted stock units, value		381			$ 381
Shares issued upon vesting of restricted stock units, shares	83,793
Net loss			(26,665)		(26,665)
Other comprehensive income (loss)				571	571
Balance, Value at Mar. 31, 2023	$ 54	$ 730,542	$ (592,897)	$ (1,101)	$ 136,598
Balance, Shares at Mar. 31, 2023	53,974,352