v3.26.1
Condensed Consolidated Statements of Cash Flows - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Cash flows from operating activities:              
Net loss $ (2,420,000) $ 676,000 $ (2,666,000) $ (1,853,000) $ (1,744,000) $ (4,519,000)  
Adjustments to reconcile net loss to net cash used in operating activities:              
Non-cash operating lease expense         11,000 122,000  
Interest expense on finance leases         1,000    
Depreciation and amortization         80,000 24,000  
Stock-based compensation expense         61,000 119,000  
Change in fair value of warrant liabilities 485,000   624,000   (2,625,000) (297,000) $ 5,607,000
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     1,198,000  
Loss on impairment and disposal of property and equipment         2,000 1,000  
Changes in operating assets and liabilities:              
Accounts receivable         (278,000) (288,000)  
Prepaid expenses and other assets         242,000 426,000  
Inventories         25,000 53,000  
Accounts payable         1,516,000 (430,000)  
Accrued liabilities         287,000 (616,000)  
Other liabilities         53,000 (459,000)  
Net cash used in operating activities         (2,369,000) (4,836,000)  
Cash flows from investing activities:              
Purchase of property and equipment         (150,000)    
Net cash used in investing activities         (150,000)    
Cash flows from financing activities:              
Principal repayment of DECD loan         (118,000) (116,000)  
Proceeds from 2026 Private Placement Offering         1,410,000    
Proceeds from March 2025 Convertible Notes           1,366,000  
Net cash provided by financing activities         1,241,000 4,612,000  
Net decrease in cash and cash equivalents         (1,278,000) (224,000)  
Cash and cash equivalents, beginning of period   $ 1,755,000   $ 1,769,000 1,755,000 1,769,000 1,769,000
Cash and cash equivalents, end of period $ 477,000   $ 1,545,000   477,000 1,545,000 $ 1,755,000
Supplemental disclosure of cash flow information:              
Cash paid for interest         234,000 17,000  
Equipment financing         282,000    
Supplemental disclosure of noncash investing and financing activities:              
Fair value of warrants issued upon conversion of March 2025 Convertible Notes           1,477,000  
Fair value of common stock issued upon conversion of March 2025 Convertible Notes           916,000  
2024 At the Market Offering Agreement              
Cash flows from financing activities:              
Proceeds from issuance           3,484,000  
Payment of issuance costs           (147,000)  
2026 Private Placement Offering              
Cash flows from financing activities:              
Payment of issuance costs         (58,000)    
2024 Equity Line of Credit              
Cash flows from financing activities:              
Proceeds from issuance           $ 25,000  
2025 Equity Purchase Agreement              
Cash flows from financing activities:              
Proceeds from issuance         $ 7,000