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	2,618	$ 1	2,617
Exercise of stock options, Shares		801,233
Vesting restricted stock, Shares		36,582
Issuance of shares under employee stock purchase plan	307		307
Issuance of shares under employee stock purchase plan, Shares		7,680
Stock-based compensation expense	8,898		8,898
Unrealized gain (loss) on marketable securities	128				128
Net Loss	(37,735)			(37,735)
Ending Balance at Jun. 30, 2021	258,104	$ 5	424,599	(166,500)
Shares, Outstanding, Ending Balance at Jun. 30, 2021		45,327,681
Beginning Balance at Mar. 31, 2021	275,247	$ 4	417,096	(141,840)	(13)
Shares, Outstanding, Beginning Balance at Mar. 31, 2021		44,879,376
Exercise of stock options	1,471	$ 1	1,470
Exercise of stock options, Shares		422,471
Vesting restricted stock, Shares		18,154
Issuance of shares under employee stock purchase plan	307		307
Issuance of shares under employee stock purchase plan, Shares		7,680
Stock-based compensation expense	5,726		5,726
Unrealized gain (loss) on marketable securities	13				13
Net Loss	(24,660)			(24,660)
Ending Balance at Jun. 30, 2021	258,104	$ 5	424,599	(166,500)
Shares, Outstanding, Ending Balance at Jun. 30, 2021		45,327,681
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	826		826
Exercise of stock options, Shares		262,527
Vesting restricted stock, Shares		27,248
Issuance of shares under employee stock purchase plan	256		256
Issuance of shares under employee stock purchase plan, Shares		21,093
Stock-based compensation expense	17,495		17,495
Unrealized gain (loss) on marketable securities	(3,323)				(3,323)
Net Loss	(76,941)			(76,941)
Ending Balance at Jun. 30, 2022	397,951	$ 5	707,852	(305,923)	(3,983)
Shares, Outstanding, Ending Balance at Jun. 30, 2022		51,847,049
Beginning Balance at Mar. 31, 2022	428,720	$ 5	697,597	(265,666)	(3,216)
Shares, Outstanding, Beginning Balance at Mar. 31, 2022		51,692,666
Exercise of stock options	377		377
Exercise of stock options, Shares		120,257
Vesting restricted stock, Shares		13,033
Issuance of shares under employee stock purchase plan	256		256
Issuance of shares under employee stock purchase plan, Shares		21,093
Stock-based compensation expense	9,622		9,622
Unrealized gain (loss) on marketable securities	(767)				(767)
Net Loss	(40,257)			(40,257)
Ending Balance at Jun. 30, 2022	$ 397,951	$ 5	$ 707,852	$ (305,923)	$ (3,983)
Shares, Outstanding, Ending Balance at Jun. 30, 2022		51,847,049