Condensed Consolidated Statements of Stockholders Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance at Dec. 31, 2020	$ 274,282	$ 3	$ 315,288	$ 33	$ (41,042)
Beginning balance, shares at Dec. 31, 2020		32,485,784
Issuance of common stock upon exercise of common stock options and vesting of restricted stock units	70		70
Issuance of common stock upon exercise of common stock options and vesting of restricted stock units, Shares		64,527
Proceeds from follow-on public offering, net of underwriters' discounts and commissions and issuance costs	96,762	$ 1	96,761
Proceeds from follow-on public offering, net of underwriters' discounts and commissions and issuance costs, Shares		4,600,000
Stock-based compensation	974		974
Unrealized loss on available-for-sale securities	(5)			(5)
Net loss	(8,866)				(8,866)
Ending balance at Mar. 31, 2021	363,217	$ 4	413,093	28	(49,908)
Ending balance, shares at Mar. 31, 2021		37,150,311
Beginning balance at Dec. 31, 2021	321,084	$ 4	417,363	(388)	(95,895)
Beginning balance, shares at Dec. 31, 2021		37,379,077
Issuance of common stock upon exercise of common stock options	$ 210		210
Issuance of common stock upon exercise of common stock options, shares	244,981	244,981
Stock-based compensation	$ 2,731		2,731
Unrealized loss on available-for-sale securities	(1,068)			(1,068)
Net loss	(20,980)				(20,980)
Ending balance at Mar. 31, 2022	$ 301,977	$ 4	$ 420,304	$ (1,456)	$ (116,875)
Ending balance, shares at Mar. 31, 2022		37,624,058