v3.26.1
Consolidated Statements of Cash Flows - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Cash flows from operating activities:    
Net Income (Loss) $ (12,780,000) $ (13,094,000)
Adjustments to reconcile net loss to net cash used in operating activities:    
Non-cash lease expense 169,000 3,000
Depreciation and amortization 112,000 92,000
Stock-based compensation expense 531,000 1,494,000
Change in fair value of warrant liabilities 5,607,000 (1,346,000)
Change in fair value of March 2025 Convertible Notes (170,000)  
Loss upon issuance of March 2025 Convertible Notes carried at fair value 1,198,000  
Loss on impairment and disposal of property and equipment 1,000 41,000
Financing expense for entering into 2025 Lincoln Park Equity Line of Credit 412,000  
Changes in operating assets and liabilities:    
Accounts receivable (217,000) 469,000
Prepaid expenses and other assets 242,000 (115,000)
Inventories 68,000 (99,000)
Accounts payable (936,000) 912,000
Accrued liabilities (1,148,000) (418,000)
Other liabilities (118,000) (52,000)
Net cash used in operating activities (7,029,000) (12,113,000)
Cash flows from investing activities:    
Purchase of property and equipment (16,000) (37,000)
Purchase of intangible assets (385,000)  
Net cash used in investing activities (401,000) (37,000)
Cash flows from financing activities:    
Principal repayment of DECD loan (233,000) (93,000)
Proceeds from issuance of common stock from exercise of warrants 112,000  
Proceeds from March 2025 Convertible Notes 1,366,000  
Net cash provided by financing activities 7,416,000 11,064,000
Net decrease in cash and cash equivalents (14,000) (1,086,000)
Cash and cash equivalents , beginning of year 1,769,000 2,855,000
Cash and cash equivalents , end of year 1,755,000 1,769,000
Supplemental disclosure of cash flow information:    
Cash paid for interest 34,000 49,000
Supplemental disclosure of noncash investing and financing activities:    
Increase in right-of-use assets   895,000
Fair value of warrants issued in conjunction with Warrant Inducement Agreement   1,323,000
Fair value of warrants issued upon conversion of Convertible Notes 1,477,000  
Fair value of common stock issued upon conversion of Convertible Notes 916,000  
2023 Equity Line of Credit Agreement    
Cash flows from financing activities:    
Proceeds from issuance of common stock 25,000 1,901,000
2024 Direct Offering    
Cash flows from financing activities:    
Proceeds from issuance of common stock   5,563,000
Payment of stock issuance costs   (733,000)
Warrant Inducement Agreement    
Cash flows from financing activities:    
Proceeds from issuance of common stock   2,139,000
Payment of stock issuance costs   (277,000)
2024 Securities Purchase Agreements    
Cash flows from financing activities:    
Proceeds from issuance of common stock   11,000
2024 At the Market Offering Agreement    
Cash flows from financing activities:    
Proceeds from issuance of common stock 3,484,000 904,000
Payment of stock issuance costs (147,000) (189,000)
2024 Private Placement Offering    
Cash flows from financing activities:    
Proceeds from issuance of common stock   1,910,000
Payment of stock issuance costs   $ (72,000)
2025 Private Placement Offering    
Cash flows from financing activities:    
Proceeds from issuance of common stock 2,949,000  
Payment of stock issuance costs $ (140,000)