v3.26.1
Note 4 - Certain Balance Sheet Components (Details Textual) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
May 01, 2025
Mar. 31, 2026
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2023
Depreciation     $ 44,000 $ 39,000    
Cost, Depreciation     32,000 9,000    
Intangible Asset, Finite-Lived, Amortization Expense     44,000 43,000    
Cost, Amortization     32,000 $ 32,000    
Loss on Contract Termination     5,000   $ 5,000 $ 505,085
Loss on Contract Termination, Monthly Payment           $ 21,045
Contract Termination Payable, Term (Year)           24 years
Contract Termination, Returned Inventory Refund $ 415,000   320,000   320,000  
Contract Termination, Monthly Interest           1.00%
Contract Termination, Penalty Paid   $ 500,000        
Contract Termination, Interest Paid     $ 110,000   $ 90,000  
Developed Technology Rights [Member]            
Intangible Asset, Finite-Lived, Useful Life (Year)     7 years 3 months      
Trade Names [Member]            
Intangible Asset, Finite-Lived, Useful Life (Year)     3 months      
Licensing Agreements [Member]            
Intangible Asset, Finite-Lived, Useful Life (Year)     10 years