Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 106,349	$ 118,038
Inventory	51	0
Prepaid expenses and other current assets	1,760	1,411
Total current assets	108,160	119,449
Property and equipment, net	1,109	1,160
Intangible assets, net	907	1,220
Goodwill	2,791	2,791
Right-of-use assets	6,607	7,163
Other assets	677	677
Total assets	120,251	132,460
Current liabilities:
Accounts payable	2,742	1,673
Accrued expenses	4,777	7,027
Lease liability, current	1,459	1,355
Total current liabilities	8,978	10,055
Lease liability, less current portion	6,786	7,543
Total liabilities	15,764	17,598
Commitments and contingencies (Note 7)
Stockholders’ equity:
Preferred stock, $0.001 par value; authorized – 50,000 shares; no shares issued and outstanding	0	0
Common stock, $0.001 par value; authorized – 500,000 shares; issued and outstanding – 67,278 shares and 65,926 shares at June 30, 2025 and December 31, 2024, respectively	67	66
Additional paid-in capital	530,883	505,296
Accumulated deficit	(426,463)	(390,500)
Total stockholders’ equity	104,487	114,862
Total liabilities and stockholders’ equity	$ 120,251	$ 132,460