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Note 5 - Foreclosed Assets (Details Textual) - USD ($)
Sep. 30, 2022
Dec. 31, 2021
Mortgage Loans in Process of Foreclosure, Amount $ 0 $ 73,000
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Total 524,000 $ 725,000
Foreclosed Residential Real Estate Properties, Physical Possession Without Title [Member]    
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Total $ 0