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Consolidated Balance Sheets - USD ($)
Mar. 31, 2025
Dec. 31, 2024
us-gaap_AssetsAbstract    
Cash and cash equivalents $ 949,000 $ 2,371,000
Prepaid expenses and other current assets 224,000 251,000
Total current assets 1,173,000 2,622,000
Property and equipment, net 21,000 33,000
Operating lease right-of-use asset, net 801,000 898,000
Other assets 171,000 171,000
Total assets 2,166,000 3,724,000
us-gaap_LiabilitiesCurrentAbstract    
Accounts payable 818,000 385,000
Accrued expenses and other current liabilities 2,018,000 1,551,000
Operating lease liability - current 398,000 385,000
Total current liabilities 3,234,000 2,321,000
Operating lease liability - noncurrent 452,000 566,000
Total liabilities 3,686,000 2,887,000
Commitments and Contingencies  
us-gaap_StockholdersEquityAbstract    
Preferred stock, $0.001 par value, 25,000,000 shares authorized and no shares issued and outstanding as of March 31, 2025 and December 31, 2024 0 0
Common stock, $0.001 par value, 50,000,000 shares authorized, 4,682,184 and 4,600,910 shares issued and outstanding as of March 31, 2025 and December 31, 2024, respectively 5,000 5,000
Additional paid-in capital 161,308,000 160,953,000
Accumulated deficit (162,833,000) (160,121,000)
Total stockholders’ equity (deficit) (1,520,000) 837,000
Total liabilities and stockholders’ equity (deficit) $ 2,166,000 $ 3,724,000