CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid In Capital	Accumulated Deficit	Accumulated Other Comprehensive Gain (Loss)
Beginning Balance at Dec. 31, 2020	$ 283,888	$ 4	$ 412,777	$ (128,765)	$ (128)
Shares, Outstanding, Beginning Balance at Dec. 31, 2020		44,482,186
Exercise of stock options	1,147		1,147
Exercise of stock options, Shares		378,762
Vesting restricted stock, Shares		18,428
Stock-based compensation expense	3,172		3,172
Unrealized gain (loss) on marketable securities	115				115
Net Loss	(13,075)			(13,075)
Ending Balance at Mar. 31, 2021	275,247	$ 4	417,096	(141,840)	(13)
Shares, Outstanding, Ending Balance at Mar. 31, 2021		44,879,376
Beginning Balance at Dec. 31, 2021	459,638	$ 5	689,275	(228,982)	(660)
Shares, Outstanding, Beginning Balance at Dec. 31, 2021		51,536,181
Exercise of stock options	449		449
Exercise of stock options, Shares		142,270
Vesting restricted stock, Shares		14,215
Stock-based compensation expense	7,873		7,873
Unrealized gain (loss) on marketable securities	(2,556)				(2,556)
Net Loss	(36,684)			(36,684)
Ending Balance at Mar. 31, 2022	$ 428,720	$ 5	$ 697,597	$ (265,666)	$ (3,216)
Shares, Outstanding, Ending Balance at Mar. 31, 2022		51,692,666