Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Balance (in shares) at Dec. 31, 2021		20,895,000
Balance at Dec. 31, 2021	$ 136,406	$ 2	$ 279,089	$ 0	$ (142,685)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	1,781		1,781
Issuance of common stock upon exercise of warrants (in shares)		7,000
Issuance of common stock upon exercise of warrants	54		54
Issuance of common stock upon exercise of stock options (in shares)		40,000
Issuance of common stock upon exercise of stock options	244		244
Net loss	(13,857)				(13,857)
Balance (in shares) at Mar. 31, 2022		20,942,000
Balance at Mar. 31, 2022	124,628	$ 2	281,168	0	(156,542)
Balance (in shares) at Dec. 31, 2021		20,895,000
Balance at Dec. 31, 2021	136,406	$ 2	279,089	0	(142,685)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in unrealized gain (loss) on investments, net of tax	0
Net loss	(32,126)
Balance (in shares) at Jun. 30, 2022		21,017,000
Balance at Jun. 30, 2022	108,730	$ 2	283,539	0	(174,811)
Balance (in shares) at Mar. 31, 2022		20,942,000
Balance at Mar. 31, 2022	124,628	$ 2	281,168	0	(156,542)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	2,235		2,235
Issuance of common stock upon exercise of stock options (in shares)		75,000
Issuance of common stock upon exercise of stock options	136		136
Change in unrealized gain (loss) on investments, net of tax	0
Net loss	(18,269)				(18,269)
Balance (in shares) at Jun. 30, 2022		21,017,000
Balance at Jun. 30, 2022	108,730	$ 2	283,539	0	(174,811)
Balance (in shares) at Dec. 31, 2022		24,435,000
Balance at Dec. 31, 2022	158,378	$ 2	361,689	(115)	(203,198)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	2,740		2,740
Issuance of common stock upon exercise of stock options (in shares)		2,000
Issuance of common stock upon exercise of stock options	8		8
Change in unrealized gain (loss) on investments, net of tax	83			83
Net loss	(15,223)				(15,223)
Balance (in shares) at Mar. 31, 2023		24,437,000
Balance at Mar. 31, 2023	145,986	$ 2	364,437	(32)	(218,421)
Balance (in shares) at Dec. 31, 2022		24,435,000
Balance at Dec. 31, 2022	$ 158,378	$ 2	361,689	(115)	(203,198)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	35,633
Change in unrealized gain (loss) on investments, net of tax	$ 71
Net loss	(33,194)
Balance (in shares) at Jun. 30, 2023		24,520,000
Balance at Jun. 30, 2023	131,419	$ 2	367,853	(44)	(236,392)
Balance (in shares) at Mar. 31, 2023		24,437,000
Balance at Mar. 31, 2023	145,986	$ 2	364,437	(32)	(218,421)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	3,054		3,054
Issuance of common stock upon exercise of warrants (in shares)		34,000
Issuance of common stock upon exercise of warrants	68		68
Issuance of common stock upon exercise of stock options (in shares)		49,000
Issuance of common stock upon exercise of stock options	294		294
Change in unrealized gain (loss) on investments, net of tax	(12)			(12)
Net loss	(17,971)				(17,971)
Balance (in shares) at Jun. 30, 2023		24,520,000
Balance at Jun. 30, 2023	$ 131,419	$ 2	$ 367,853	$ (44)	$ (236,392)