CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 44,704	$ 120,385
Prepaid expenses and other current assets	3,423	4,111
Total current assets	48,127	124,496
Restricted cash	1,587	1,562
Property and equipment, net	5,942	7,255
Operating lease right-of-use asset	5,125	5,585
Other non-current assets	145	267
Total assets	60,926	139,165
Current liabilities
Accounts payable	1,050	3,125
Accrued expenses	10,497	10,327
Operating lease liability, current portion	1,047	918
Note payable, current portion	3,315	6,667
Other current liabilities	48	82
Total current liabilities	15,957	21,119
Note payable, net of current portion		3,165
Operating lease liability, net of current portion	8,142	9,189
Other non-current liabilities		45
Total liabilities	24,099	33,518
Commitments and contingencies (Note 8)
Stockholders' equity
Preferred stock, $0.0001 par value; 5,000,000 shares authorized, no shares issued or outstanding
Common stock, $0.0001 par value; 200,000,000 shares authorized at December 31, 2023 and December 31, 2022; 27,613,263 shares issued and 27,607,646 shares outstanding at December 31, 2023; 27,471,607 shares issued and 27,425,447 shares outstanding at December 31, 2022	3	3
Additional paid-in capital	362,336	354,752
Accumulated deficit	(325,512)	(249,108)
Total stockholders' equity	36,827	105,647
Total liabilities and stockholders' equity	$ 60,926	$ 139,165