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Note 14 - Fair Value (Details Textual) - USD ($)
 6 Months Ended 12 Months Ended
Dec. 31, 2022
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Impaired Loans, Fair Value Disclosure     $ 297,000  
Impaired Loans, Valuation Allowance     30,000  
Increase (Decrease) in Impaired Loans Valuation Allowance     2,000  
Foreclosed Assets, Gross     952,000  
Foreclosed Assets, Valuation Allowance $ 0 $ 0 227,000 $ 0
Repossessed Assets, Total 476,000 476,000 725,000 $ 157,000
Foreclosed Assets Valuation Adjustments, With Valuation Reserve 31,000      
Foreclosed Assets Valuation Adjustments   (31,000) $ (420,000)  
Impaired Loans [Member]        
Impaired Loans, Valuation Allowance $ 30,000 $ 30,000