v3.26.1
Note 1 - Basis of Presentation (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Nov. 04, 2025
Mar. 07, 2025
Aug. 31, 2026
Mar. 31, 2026
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Oct. 27, 2025
Mar. 06, 2024
Dec. 31, 2023
Net Income (Loss) Attributable to Parent         $ (11,374,000) $ (8,636,000) $ (7,730,000) $ (9,593,000) $ (20,010,000) $ (17,323,000)        
Working Capital         1,600,000       1,600,000          
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation                 (12,158,000) (5,000,000)        
Proceeds from Issuance of Debt                 15,000,000 0        
Interest Paid, Excluding Capitalized Interest, Operating Activity                 1,656,000          
Paid-in-Kind Interest                 1,461,000          
Dividends Payable, Current         $ 1,265,000       1,265,000   $ 1,265,000      
Capital Expenditures Incurred but Not yet Paid                 900,000          
Amortization of Debt Discount (Premium)                 1,153,000 $ 737,000        
March 2025 Direct Offering [Member] | Certain Institutional and Individual Investors [Member]                            
Stock Issued During Period, Shares, New Issues (in shares)   5,715,000                        
Shares Issued, Price Per Share (in dollars per share)   $ 3.5                        
Proceeds from Issuance of Common Stock, Gross   $ 20,000,000                        
Proceeds from Issuance of Common Stock, Net   $ 18,300,000                        
Senior Secured Convertible Terms Loans [Member]                            
Debt Instrument, Face Amount                         $ 20,000,000  
Secured Non Convertible Terms Loans [Member]                            
Debt Instrument, Face Amount                         21,200,000 $ 20,000,000
Convertible Loans [Member]                            
Debt Instrument, Face Amount                         $ 16,000,000  
Lytton Agreement [Member]                            
Debt Instrument, Face Amount                       $ 51,000,000    
Proceeds from Issuance of Debt $ 15,000,000     $ 15,000,000   $ 30,000,000                
Amortization of Debt Discount (Premium)                 $ 3,300,000          
Stock Issued During Period, Shares, Issued to Lenders (in shares)                 375,000          
Proceeds from Lines of Credit                 $ 15,000,000          
Lytton Agreement [Member] | Subsequent Event [Member]                            
Proceeds from Issuance of Debt     $ 10,000,000