Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 53,059	$ 179,293
Marketable debt securities, short-term	96,290
Restricted cash	1,472	1,472
Prepaid expenses and other current assets	5,361	5,847
Total current assets	156,182	186,612
Property and equipment, net	13,163	11,165
Operating lease right-of-use assets	13,458	13,602
Total assets	182,803	211,379
Current liabilities:
Accounts payable	4,025	7,097
Accrued expenses and other current liabilities	6,363	24,537
Operating lease liabilities, current portion	1,213
Total current liabilities	11,601	31,634
Operating lease liabilities, net of current portion	19,039	18,921
Total liabilities	30,640	50,555
Commitments and contingencies (Note 13)
Stockholders' equity:
Preferred stock, par value $0.001 per share, 10,000,000 shares authorized; zero shares issued and outstanding
Common stock, $0.001 par value per share; 190,000,000 shares; 36,974,396 and 35,110,016 shares issued as of March 31, 2023 and December 31, 2022, respectively, 36,918,371 and 34,958,730 shares outstanding as of March 31, 2023 and December 31, 2022, respectively	37	34
Additional paid-in capital	383,108	373,225
Accumulated other comprehensive income	696
Accumulated deficit	(231,678)	(212,435)
Total stockholders' equity	152,163	160,824
Total liabilities and stockholders' equity	$ 182,803	$ 211,379