Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Public Offering [Member]	At-the-market Offering [Member]	Common Stock [Member]	Common Stock [Member] Public Offering [Member]	Common Stock [Member] At-the-market Offering [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Public Offering [Member]	Additional Paid-in Capital [Member] At-the-market Offering [Member]	Accumulated Deficit [Member]
Beginning balance at Dec. 31, 2020	$ 127,199			$ 25			$ 253,943			$ (126,769)
Beginning balance (Shares) at Dec. 31, 2020				24,786,324
Issuance of common stock		$ 55,602			$ 3			$ 55,599
Issuance of common stock (Shares)					3,000,000
Issuance of common stock upon exercise of stock options	960						960
Issuance of common stock upon exercise of stock options (Shares)				245,080
Stock-based compensation expense	3,412						3,412
Net loss	(34,469)									(34,469)
Ending balance at Jun. 30, 2021	152,704			$ 28			313,914			(161,238)
Ending balance (Shares) at Jun. 30, 2021				28,031,404
Beginning balance at Mar. 31, 2021	169,285			$ 28			311,425			(142,168)
Beginning balance (Shares) at Mar. 31, 2021				27,881,111
Issuance of common stock upon exercise of stock options	660						660
Issuance of common stock upon exercise of stock options (Shares)				150,293
Stock-based compensation expense	1,829						1,829
Net loss	(19,070)									(19,070)
Ending balance at Jun. 30, 2021	152,704			$ 28			313,914			(161,238)
Ending balance (Shares) at Jun. 30, 2021				28,031,404
Beginning balance at Dec. 31, 2021	123,976			$ 28			319,458			(195,510)
Beginning balance (Shares) at Dec. 31, 2021				28,133,368
Issuance of common stock under employee stock purchase plan	111						111
Issuance of common stock under employee stock purchase plan (Shares)				41,265
Issuance of common stock			$ 3,092			$ 1			$ 3,091
Issuance of common stock (Shares)						958,663
Issuance of common stock upon exercise of stock options	$ 29						29
Issuance of common stock upon exercise of stock options (Shares)	14,757			14,757
Stock-based compensation expense	$ 4,254						4,254
Net loss	(43,274)									(43,274)
Ending balance at Jun. 30, 2022	88,188			$ 29			326,943			(238,784)
Ending balance (Shares) at Jun. 30, 2022				29,148,053
Beginning balance at Mar. 31, 2022	104,914			$ 28			321,434			(216,548)
Beginning balance (Shares) at Mar. 31, 2022				28,148,125
Issuance of common stock under employee stock purchase plan	111						111
Issuance of common stock under employee stock purchase plan (Shares)				41,265
Issuance of common stock			$ 3,092			$ 1			$ 3,091
Issuance of common stock (Shares)			958,663
Stock-based compensation expense	2,307						2,307
Net loss	(22,236)									(22,236)
Ending balance at Jun. 30, 2022	$ 88,188			$ 29			$ 326,943			$ (238,784)
Ending balance (Shares) at Jun. 30, 2022				29,148,053