Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2021		46,958,776
Beginning balance at Dec. 31, 2021	$ 118,900	$ 5	$ 259,859	$ (221)	$ (140,743)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)		208
Issuance of common stock upon exercise    of stock options	0		0
Issuance of common stock under stock purchase plan (in shares)		51,329
Issuance of common stock under stock purchase plan	157		157
Issuance of common stock upon public offering, net of issuance costs (in shares)		7,337,251
Issuance of common stock upon public offering, net of issuance costs	20,556	$ 1	20,555
Stock-based compensation expense	1,865		1,865
Unrealized gain (loss) on marketable securities	(690)			(690)
Net income (loss)	6,199				6,199
Ending balance (in shares) at Mar. 31, 2022		54,347,564
Ending balance at Mar. 31, 2022	$ 146,987	$ 6	282,436	(911)	(134,544)
Beginning balance (in shares) at Dec. 31, 2022	60,578,956	60,578,956
Beginning balance at Dec. 31, 2022	$ 93,403	$ 6	298,741	(1,015)	(204,329)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under stock purchase plan (in shares)		137,917
Issuance of common stock under stock purchase plan	77		77
Stock-based compensation expense	1,646		1,646
Unrealized gain (loss) on marketable securities	446			446
Net income (loss)	$ (19,741)				(19,741)
Ending balance (in shares) at Mar. 31, 2023	60,716,873	60,716,873
Ending balance at Mar. 31, 2023	$ 75,831	$ 6	$ 300,464	$ (569)	$ (224,070)