v3.26.1
Note 5 - Commitments and Contingencies (Details Textual) - USD ($)
Jun. 30, 2026
Dec. 31, 2025
Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability $ 2,180,000  
Commitments to Extend Credit [Member]    
Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability   $ 1,364,000