Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 44,220	$ 33,751
Short-term investments	31,990	44,872
Prepaid expenses and other current assets	1,163	1,494
Total current assets	77,373	80,117
Property and equipment, net	2	6
Operating lease right-of-use assets	158	209
Total assets	77,533	80,332
Current liabilities:
Accounts payable	69	224
Accrued and other current liabilities	2,036	3,187
Operating lease liabilities	312	417
Total current liabilities	2,417	3,828
Other liabilities	70	70
Total liabilities	2,487	3,898
Commitments and contingencies (Note 5)
Stockholders' equity:
Preferred stock, $0.0001 par value; 10,000,000 shares authorized as of March 31, 2025 and December 31, 2024, respectively; no shares issued and outstanding at March 31, 2025 and December 31, 2024, respectively
Common stock, $0.0001 par value; 150,000,000 shares authorized at March 31, 2025 and December 31, 2024, respectively; 28,985,019 and 27,762,703 shares issued and outstanding at March 31, 2025 and December 31, 2024, respectively	3	3
Additional paid-in capital	310,563	309,378
Accumulated other comprehensive gain	50	105
Accumulated deficit	(235,570)	(233,052)
Total stockholders' equity	75,046	76,434
Total liabilities and stockholders' equity	$ 77,533	$ 80,332