v3.26.1
Note 4 - Certain Balance Sheet Components (Details Textual) - USD ($)
3 Months Ended 12 Months Ended
May 01, 2025
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Depreciation   $ 25,000 $ 19,000 $ 76,000 $ 27,000  
Cost, Depreciation   5,000 5,000 138,000 28,000  
Property, Plant and Equipment, Disposals       0 74,000  
Amortization of Intangible Assets   22,000 $ 22,000 87,000    
Loss on Contract Termination   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        
Contract Termination, Monthly Interest           1.00%
Contract Termination, Penalty Paid   $ 500,000   500,000    
Contract Termination, Interest Paid       94,915    
Contract Termination Penalty       0 505,085  
Contract Termination, Refund for Return Inventory       $ 415,000 $ 415,000  
Developed Technology Rights [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)   7 years 6 months   7 years 9 months    
Trade Names [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)   6 months   9 months    
Licensing Agreements [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)   10 years   10 years