Quarterly report [Sections 13 or 15(d)]

Condensed Statements of Cash Flows (Unaudited)

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Condensed Statements of Cash Flows (Unaudited) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
CASH FLOWS FROM OPERATING ACTIVITIES          
Net loss $ (1,433,000) $ (3,710,000) $ (2,209,000) $ (5,976,000)  
Adjustments to reconcile net loss to net cash used in operating activities:          
Stock based compensation     7,000 222,000  
Issuance of warrants for VRT waiver     44,000  
Change in fair value of warrant liability 114,000 (117,000) (12,000) (775,000)  
Gain on settlement of debt (998,000)  
Gain on extinguishment of debt     (200,000)  
Unrealized gain on short-term investments     (1,000)  
Changes in operating assets and liabilities:          
(Increase) Decrease in prepaid expenses     (225,000) 67,000  
Decrease in accounts payable and accrued expenses     (1,623,000) (1,231,000)  
(Increase) in operating lease right-of-use assets     (5,000)  
Net Cash Used in Operating Activities     (5,216,000) (7,699,000)  
CASH FLOWS FROM INVESTING ACTIVITIES          
Sale of investments     12,893,000  
Net Cash Provided by Investing Activities     12,893,000  
CASH FLOWS FROM FINANCING ACTIVITIES          
Exercise of warrants and issuance of inducement warrants for cash, net     1,052,000  
Proceeds from issuance of common stock and warrants, net       2,976,000  
Proceeds from issuance of Series L convertible preferred stock and warrants, net     5,441,000  
Net Cash Provided by Financing Activities     6,493,000 2,976,000  
Net Increase in Cash and Cash Equivalents and Restricted Cash     1,277,000 8,170,000  
Cash and Cash Equivalents and Restricted Cash at Beginning of Period     4,044,000 1,079,000 $ 1,079,000
Cash and Cash Equivalents and Restricted Cash at End of Period $ 5,321,000 $ 9,249,000 5,321,000 9,249,000 $ 4,044,000
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:          
Interest      
Income taxes      
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING ACTIVITIES          
Fair value of vested warrants issued in Series L conv. preferred stock transaction     3,389,000  
Fair value of prefunded warrants issued for ELOC fee     672,000  
Fair value of common stock and warrants issued for services     718,000  
Fair value of prefunded warrant or common stock to settle vendor payable     847,000 810,000  
Dividend on Series L convertible preferred stock     85,000  
Conversion of Series L convertible preferred stock into common stock     $ 96,000