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Consolidated Balance Sheets (Current Period Unaudited) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Current assets:    
Cash and cash equivalents $ 5,287 $ 2,371
Prepaid expenses and other current assets 78 251
Total current assets 5,365 2,622
Property and equipment, net 13 33
Operating lease right-of-use asset, net 599 898
Other assets 171 171
Total assets 6,148 3,724
Current liabilities:    
Accounts payable 1,080 385
Accrued expenses and other current liabilities 1,803 1,551
Operating lease liability - current 427 385
Total current liabilities 3,310 2,321
Operating lease liability - noncurrent 211 566
Total liabilities 3,521 2,887
Commitments and Contingencies  
Common stock, $0.001 par value, 50,000,000 shares authorized, 10,608,734 and 4,600,910 shares issued and outstanding as of September 30, 2025 and December 31, 2024, respectively    
Preferred stock, $0.001 par value, 25,000,000 shares authorized and no shares issued and outstanding as of September 30, 2025 and December 31, 2024 0 0
Common stock, $0.001 par value, 50,000,000 shares authorized, 10,608,734 and 4,600,910 shares issued and outstanding as of September 30, 2025 and December 31, 2024, respectively 11 5
Additional paid-in capital 168,981 160,953
Accumulated deficit (166,365) (160,121)
Total stockholders’ equity 2,627 837
Total liabilities and stockholders’ equity $ 6,148 $ 3,724