CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Total
Beginning balance at Dec. 31, 2020	$ 44	$ 625,762	$ 49	$ (459,327)	$ 166,528
Beginning balance (in shares) at Dec. 31, 2020	44,235,903
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense		5,191			5,191
Issuance of common stock in connection with ESPP		388			388
Issuance of common stock in connection with ESPP (in shares)	17,000
Issuance of common stock in connection with exercise of stock options and vesting of restricted stock units		3,466			3,466
Issuance of common stock in connection with exercise of stock options and vesting of restricted stock units (in shares)	198,855
Unrealized loss on marketable securities			(107)		(107)
Issuance of common stock upon completion of public offering, net of offering costs	$ 6	161,725			161,731
Issuance of common stock upon completion of public offering, net of offering costs (in shares)	5,750,000
Net (loss) income				43,750	43,750
Ending balance at Mar. 31, 2021	$ 50	796,532	(58)	(415,577)	380,947
Ending balance (in shares) at Mar. 31, 2021	50,201,758
Beginning balance at Dec. 31, 2021	$ 50	813,041	(1)	(528,939)	284,151
Beginning balance (in shares) at Dec. 31, 2021	50,283,574
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense		4,611			4,611
Issuance of common stock in connection with ESPP		399			399
Issuance of common stock in connection with ESPP (in shares)	61,518
Issuance of common stock in connection with exercise of stock options and vesting of restricted stock units (in shares)	48,639
Unrealized loss on marketable securities			(628)		(628)
Net (loss) income				(52,764)	(52,764)
Ending balance at Mar. 31, 2022	$ 50	$ 818,051	$ (629)	$ (581,703)	$ 235,769
Ending balance (in shares) at Mar. 31, 2022	50,393,731