Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 21,847	$ 28,926
Restricted cash	116	116
Property and equipment held for sale	602	0
Prepaid expenses	1,226	3,191
Other current assets	3,067	1,987
Total current assets	26,858	34,220
Other assets, noncurrent	267	811
Operating lease right of use assets	488	933
Property and equipment, net	0	4,175
Total assets	27,613	40,139
Current liabilities:
Accounts payable	1,695	870
Accrued expenses and other current liabilities	4,873	6,244
Operating lease liability, current	690	1,085
Total current liabilities	7,258	8,199
Operating lease liability, noncurrent	0	104
Other liabilities, noncurrent	369	369
Total liabilities	7,627	8,672
Stockholders' equity (deficit)
Preferred stock, $0.001 par value; 10,000,000 shares authorized at March 31, 2025 and December 31, 2024, respectively, 0 shares issued and outstanding as of March 31, 2025 and December 31, 2024, respectively	0	0
Common stock, $0.001 par value; 490,000,000 shares authorized at March 31, 2025 and December 31, 2024, respectively, 23,138,896 and 23,136,617 shares issued and outstanding as of March 31, 2025 and December 31, 2024, respectively	23	23
Additional paid-in capital	279,566	279,241
Accumulated other comprehensive loss	(202)	(202)
Accumulated deficit	(259,401)	(247,595)
Total stockholders' equity	19,986	31,467
Total liabilities and stockholders' equity	$ 27,613	$ 40,139