Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 20,375	$ 27,632
Short-term investments	62,460	75,331
Prepaid expenses and other current assets	1,092	3,659
Total current assets	83,927	106,622
Property and equipment, net	102	134
Right-of-use assets	546	599
Other non-current assets	64	81
Total assets	84,639	107,436
Current liabilities:
Accounts payable	676	8,717
Accrued expenses	1,807	9,129
Operating lease liabilities, current portion	331	331
Total current liabilities	2,814	18,177
Operating lease liabilities, less current portion	576	642
Performance award	7	7
Total liabilities	3,397	18,826
Commitments and contingencies
Stockholders' equity:
Common stock, $0.0001 par value; 200,000,000 shares authorized at March 31, 2024 and December 31, 2023; 33,420,808 shares issued and outstanding at March 31, 2024 and December 31, 2023	3	3
Additional paid-in capital	308,151	307,073
Accumulated deficit	(226,900)	(218,474)
Accumulated other comprehensive (loss) income	(12)	8
Total stockholders' equity	81,242	88,610
Total liabilities and stockholders' equity	$ 84,639	$ 107,436