CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 37,312	$ 51,992
Marketable securities	49,362	65,948
Prepaid expenses and other current assets	3,542	3,967
Total current assets	90,216	121,907
Property and equipment, net	1,535	1,745
Operating lease right-of-use assets	15,452	16,147
Financing lease right-of-use assets	39	49
Restricted cash	927	927
Other assets	295	83
Total assets	108,464	140,858
Current liabilities:
Accounts payable	1,418	1,946
Accrued expenses and other current liabilities	8,368	8,810
Operating lease liabilities	969	905
Total current liabilities	10,755	11,661
Operating lease liabilities, net of current portion	12,437	12,945
Total liabilities	23,192	24,606
Commitments and contingencies (Note 11)
Stockholders' equity:
Undesignated preferred stock, $0.0001 par value, 10,000,000 shares authorized as of June 30, 2024 and December 31, 2023, respectively; 0 share issued and outstanding at June 30, 2024 and December 31, 2023, respectively
Common stock, $0.0001 par value; 150,000,000 shares authorized at June 30, 2024 and December 30, 2023; 37,633,635 shares issued as of June 30, 2024 and 35,929,035 shares issued as of December 31, 2023; and 37,589,312 shares outstanding as of June 30, 2024 and 35,884,712 shares outstanding as of December 31, 2023	4	4
Additional paid-in capital	349,233	339,025
Accumulated other comprehensive income (loss)	(26)	(5)
Accumulated deficit	(263,939)	(222,772)
Total stockholders' equity	85,272	116,252
Total liabilities and stockholders' equity	$ 108,464	$ 140,858