Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 39,141	$ 34,315
Investments	64,225	88,492
Prepaid expenses and other current assets	4,611	4,899
Total current assets	107,977	127,706
Property and equipment, net	2,333	2,587
Restricted cash	1,168	1,168
Right-of-use assets	24,104	24,794
Total assets	135,582	156,255
Current liabilities:
Accounts payable	3,046	1,877
Accrued expenses and other current liabilities	9,801	13,384
Total current liabilities	12,847	15,261
Non-current operating lease liabilities	24,545	25,299
Total liabilities	37,392	40,560
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.0001 par value; 10,000,000 shares authorized at March 31, 2023 and December 31, 2022; no shares issued or outstanding at March 31, 2023 and December 31, 2022	0	0
Common stock; $0.0001 par value; 500,000,000 shares authorized at March 31, 2023 and December 31, 2022; 36,511,947 shares issued and outstanding at March 31, 2023 and 36,434,297 shares issued and outstanding at December 31, 2022	5	5
Additional paid-in capital	455,225	452,503
Accumulated other comprehensive loss	(1,176)	(1,824)
Accumulated deficit	(355,864)	(334,989)
Total stockholders' equity	98,190	115,695
Total liabilities and stockholders' equity	$ 135,582	$ 156,255