Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 189,567	$ 259,682
Prepaid expenses and other current assets	9,578	7,560
Total current assets	199,145	267,242
Property and equipment, net	4,126	3,064
Restricted cash	492	492
Other assets	74	436
Total assets	203,837	271,234
Current liabilities:
Accounts payable	3,486	2,682
Accrued expenses and other current liabilities	15,638	13,693
Deferred rent	262	239
Total current liabilities	19,386	16,614
Note payable, net of discount	14,945
Deferred rent, net of current portion	30	276
Total liabilities	34,361	16,890
Commitments and contingencies (Note 6)
Stockholders’ equity:
Preferred stock, $0.0001 par value; 10,000 shares authorized and no shares issued or outstanding as of December 31, 2021 and 2020
Common stock, $0.0001 par value; 150,000 shares authorized as of December 31, 2021 and 2020; 43,652 and 41,569 shares issued and outstanding as of December 31, 2021 and 2020, respectively	4	4
Additional paid-in capital	553,014	518,756
Accumulated deficit	(383,542)	(264,416)
Total stockholders’ equity	169,476	254,344
Total liabilities and stockholders' equity	$ 203,837	$ 271,234