CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income [Member]
Balance at Dec. 31, 2021	$ 184,380	$ 34	$ 752,602	$ (569,097)	$ 841
Balance, shares at Dec. 31, 2021		33,905,826
Net loss	(40,382)			(40,382)
Other comprehensive gain (loss)	(239)				(239)
Issuance of stock, net of issue costs	20		20
Employee stock purchase plan	201		201
Employee stock purchase plan, shares		28,504
Exercise of stock options	40		40
Exercise of stock options, shares		4,223
Vesting of stock units	(271)		(271)
Vesting of stock units, shares		114,063
Stock-based compensation	7,617		7,617
Balance at Jun. 30, 2022	151,366	$ 34	760,209	(609,479)	602
Balance, shares at Jun. 30, 2022		34,052,616
Balance at Mar. 31, 2022	166,819	$ 34	756,070	(590,073)	788
Balance, shares at Mar. 31, 2022		34,047,128
Net loss	(19,406)			(19,406)
Other comprehensive gain (loss)	(186)				(186)
Issuance of stock, net of issue costs	20		20
Vesting of stock units	(21)		(21)
Vesting of stock units, shares		5,488
Stock-based compensation	4,140		4,140
Balance at Jun. 30, 2022	151,366	$ 34	760,209	(609,479)	602
Balance, shares at Jun. 30, 2022		34,052,616
Balance at Dec. 31, 2022	$ 96,368	$ 34	766,899	(671,351)	786
Balance, shares at Dec. 31, 2022	34,082,934	34,082,934
Net loss	$ (44,084)			(44,084)
Other comprehensive gain (loss)	56				56
Employee stock purchase plan	248		248
Employee stock purchase plan, shares		63,721
Exercise of stock options	5		5
Exercise of stock options, shares		880
Vesting of stock units	(169)		(169)
Vesting of stock units, shares		158,583
Stock-based compensation	4,838		4,838
Balance at Jun. 30, 2023	$ 57,262	$ 34	771,821	(715,435)	842
Balance, shares at Jun. 30, 2023	34,306,118	34,306,118
Balance at Mar. 31, 2023	$ 78,390	$ 34	770,028	(692,515)	843
Balance, shares at Mar. 31, 2023		34,301,926
Net loss	(22,920)			(22,920)
Other comprehensive gain (loss)	(1)				(1)
Exercise of stock options	5		5
Exercise of stock options, shares		880
Vesting of stock units, shares		3,312
Stock-based compensation	1,788		1,788
Balance at Jun. 30, 2023	$ 57,262	$ 34	$ 771,821	$ (715,435)	$ 842
Balance, shares at Jun. 30, 2023	34,306,118	34,306,118