v3.26.1
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Cash flows from operating activities    
Net comprehensive loss $ (4,536,000) $ (21,441,000)
Adjustments to reconcile net comprehensive loss to net cash used in operating activities:    
Loss on extinguishment of debt 4,132,000 1,822,000
Changes in fair value of freestanding and hybrid financial instruments designated at Fair Value Option 2,255,000 2,411,000
Depreciation and amortization expenses 946,000 957,000
Amortization of debt discount 432,000  
Stock-based compensation, vested and released restricted stock units, and exercised stock options 326,000 580,000
Amortization of operating lease - right-of-use asset 116,000 145,000
Share in joint venture's loss 36,000 75,000
Changes in assets and liabilities    
Accounts receivable 1,513,000 354,000
Other receivable (13,000) (13,000)
Inventory 1,283,000 (374,000)
Prepaid expenses and other current assets 91,000 (775,000)
Other assets 26,000 106,000
Accounts payable (3,893,000) 1,285,000
Accrued liabilities 979,000 1,581,000
Deferred revenue (84,000) (85,000)
Operating lease liability (117,000) (137,000)
Total cash provided by (used in) operating activities 3,492,000 (13,509,000)
Cash flows from financing activities    
Payment of 2025 Note Payable (4,000,000)  
Payment of Convertible Notes (2,435,000) (20,000)
Proceeds from issuance of preferred stock 1,826,000  
Payment of insurance financing (298,000)  
Proceeds from issuance of pre-funded warrants 154,000  
Proceeds from Convertible Notes 0 3,445,000
Proceeds from issuance of shares in At the Market offering, net of issuance and offering costs of $0 and $47 in 2026 and 2025, respectively 0 3,250,000
Proceeds from issuance of shares to third party investors   1,309,000
Repayment of insurance financing 0 (313,000)
Payment of Tempesta Note 0 (50,000)
Total cash provided by (used in) financing activities (4,753,000) 7,621,000
Effects of foreign exchange rate changes on assets and liabilities 19,000 93,000
Net decrease in cash and restricted cash (1,242,000) (5,795,000)
Cash and restricted cash at beginning of the period 7,832,000 8,002,000
Cash and restricted cash at end of the period 6,590,000 2,207,000
Supplemental schedule of cash flow information    
Cash paid for interest 6,000 9,000
Supplemental schedule of non-cash financing and investing activities    
Adjustment for 1-for-35 reverse stock split, effective April 30, 2026 1,000  
First Insurance Financing 504,000 681,000
Recognition of operating lease - right-of-use asset and operating lease liability 109,000 341,000
Cash and restricted cash    
Cash 3,788,000 2,207,000
Restricted cash 2,802,000  
Total cash and restricted cash 6,590,000 2,207,000
Series O Preferred Stock    
Supplemental schedule of non-cash financing and investing activities    
Stock dividends issued as Series O Preferred Stock 9,470,000  
Convertible Notes    
Supplemental schedule of non-cash financing and investing activities    
Stock issued in exchange of notes payable and accrued interest 0 866,000
Preferred Stock    
Supplemental schedule of non-cash financing and investing activities    
Shares issued in exchange of another class of preferred stock 0 2,485,000
Common Stock | Series M Preferred Stock    
Supplemental schedule of non-cash financing and investing activities    
Common stock issued to investors in exchange for Preferred Stock 0  
Streeterville | Series M Preferred Stock    
Supplemental schedule of non-cash financing and investing activities    
Warrants issued in exchange for preferred stock 1,511,000  
Deemed dividend related to exchange of preferred stock 1,511,000  
Streeterville | Series L Preferred Stock    
Supplemental schedule of non-cash financing and investing activities    
Warrants issued in exchange for preferred stock 4,647,000  
Deemed dividend related to exchange of preferred stock 2,163,000  
Streeterville | Series Q Preferred Stock    
Supplemental schedule of non-cash financing and investing activities    
Deemed dividend related to exchange of preferred stock 24,000  
Deemed contribution related to exchange of Preferred Stock 16,000  
Streeterville | Preferred Stock    
Supplemental schedule of non-cash financing and investing activities    
Stock issued in exchange of notes payable and accrued interest 3,700,000 2,250,000
Streeterville | Common Stock    
Supplemental schedule of non-cash financing and investing activities    
Common stock issued upon exercise of pre funded warrants 0  
Stock issued in exchange of notes payable and accrued interest 0 315,000
Streeterville | Common Stock | Series Q Preferred Stock    
Supplemental schedule of non-cash financing and investing activities    
Deemed contribution related to conversion of Preferred Stock 8,000  
Iliad | Series M Preferred Stock    
Supplemental schedule of non-cash financing and investing activities    
Warrants issued in exchange for preferred stock 1,910,000  
Deemed dividend related to exchange of preferred stock 1,910,000  
Iliad | Series L Preferred Stock    
Supplemental schedule of non-cash financing and investing activities    
Warrants issued in exchange for preferred stock 479,000  
Deemed dividend related to exchange of preferred stock 479,000  
Iliad | Preferred Stock    
Supplemental schedule of non-cash financing and investing activities    
Stock issued in exchange of notes payable and accrued interest 0 4,800,000
Iliad | Common Stock    
Supplemental schedule of non-cash financing and investing activities    
Common stock issued upon exercise of pre funded warrants 0  
Stock issued in exchange of notes payable and accrued interest   1,100,000
Investors | Series N Preferred Stock    
Supplemental schedule of non-cash financing and investing activities    
Deemed dividend related to exchange of preferred stock 0  
Investors | Common Stock | Restricted Stock Units    
Supplemental schedule of non-cash financing and investing activities    
Stock issued in exchange of preferred stock 0  
Investors | Common Stock | Series O Preferred Stock    
Supplemental schedule of non-cash financing and investing activities    
Stock Issued upon conversion of Preferred Stock 8,510,000  
Investors | Common Stock | Series N Preferred Stock    
Supplemental schedule of non-cash financing and investing activities    
Stock issued in exchange of preferred stock 0  
Uptown | Common Stock    
Supplemental schedule of non-cash financing and investing activities    
Stock issued in exchange of notes payable and accrued interest $ 113,000 $ 1,210,000