v3.25.1
Note 1 - Business Description and Significant Accounting Policies (Details Textual)
Aug. 23, 2024
Mar. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Mar. 31, 2024
USD ($)
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation   $ 4,316,000 $ 4,965,000 $ 5,360,000
Certificates of Deposit, at Carrying Value   $ 500,000 $ 500,000 $ 500,000
Minimum [Member]        
Finite-Lived Intangible Asset, Useful Life (Year)     5 years  
G P Communications [Member]        
Subsidiary, Ownership Percentage, Parent   100.00%    
Reverse Stock Split [Member]        
Stockholders' Equity Note, Stock Split, Conversion Ratio 40