Annual report [Section 13 and 15(d), not S-K Item 405]

Note 9 - Income Taxes (Details Textual)

v3.26.1
Note 9 - Income Taxes (Details Textual) - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount $ 614,000 $ 5,496,000
Unrecognized Tax Benefits 0 $ 0
Domestic Tax Jurisdiction [Member]    
Operating Loss Carryforwards 163,800,000  
Operating Loss Carryforwards, Subject to Expiration 24,500,000  
Operating Loss Carryforwards without Expiration Date 139,300,000  
State and Local Jurisdiction [Member]    
Operating Loss Carryforwards 150,900,000  
Operating Loss Carryforwards, Subject to Expiration 149,300,000  
Operating Loss Carryforwards without Expiration Date 1,600,000  
Foreign Tax Jurisdiction [Member]    
Operating Loss Carryforwards $ 0