Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 25,068	$ 32,786
Marketable securities	28,179	27,438
Prepaid expenses and other current assets	3,881	3,686
Total current assets	57,128	63,910
Marketable securities, non-current	3,964	5,832
Operating lease right-of-use asset	704	810
Equipment, net	345	357
Other assets, non-current	2,489	2,279
Total assets	64,630	73,188
Current liabilities
Accounts payable	3,550	3,350
Accrued expenses and other current liabilities	10,513	7,757
Total current liabilities	14,063	11,107
Operating lease liabilities, non-current	234	328
Total liabilities	14,297	11,435
Commitments and contingencies (Note 9)
Stockholders’ equity
Preferred stock, par value of $0.00001 per share; 10,000,000 shares authorized at March 31, 2023 and December 31, 2022; no shares issued or outstanding as of March 31, 2023 and December 31, 2022
Common stock, par value of $0.00001 per share; 300,000,000 shares authorized at March 31, 2023 and December 31, 2022; 25,673,474 and 25,652,392 shares issued and outstanding at March 31, 2023 and December 31,2022, respectively
Additional paid-in capital	281,190	279,733
Accumulated deficit	(230,730)	(217,736)
Accumulated other comprehensive loss	(127)	(244)
Total stockholders’ equity	50,333	61,753
Total liabilities and stockholders' equity	$ 64,630	$ 73,188