v3.26.1
Note 1 - Business Description and Significant Accounting Policies (Details Textual)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
May 29, 2026
USD ($)
May 28, 2026
USD ($)
Jun. 30, 2025
USD ($)
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation $ 735,000 $ 735,000 $ 2,258,000     $ 10,795,000
Certificates of Deposit, at Carrying Value 0 $ 0 500,000     500,000
Number of Operating Segments   3        
Equity Securities without Readily Determinable Fair Value, Amount 1,000,000 $ 1,000,000 0      
Intangible Asset, Finite-Lived, after Accumulated Amortization 58,000 58,000 0      
Manako Labs Ltd [Member]            
Equity Securities without Readily Determinable Fair Value, Amount 1,000,000 1,000,000     $ 1,000,000  
Prefunded Warrants [Member]            
Class of Warrant or Right, Issuance Costs           $ 335,000
Warrants and Rights Outstanding, Term (Year)           12 years
Stock-based Advisory Fees 82,000 166,000 $ 169,000      
Closing Warrant [Member] | Manako Labs Ltd [Member]            
Intangible Asset, Finite-Lived, after Accumulated Amortization       $ 60,000    
Intangible Asset, Finite-Lived, Useful Life (Year)       3 years    
Intangible Asset, Finite-Lived, Amortization Expense 2,000 2,000        
Intangible Asset, Finite-Lived, Impairment Loss $ 0 $ 0        
G P Communications [Member]            
Subsidiary, Ownership Percentage, Parent 100.00% 100.00%