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Mortgage Servicing Rights - Schedule of Mortgage Servicing Rights (Details) - USD ($)
Sep. 30, 2024
Dec. 31, 2023
Sep. 30, 2023
Transfers and Servicing [Abstract]      
Mortgage servicing rights $ 8,715,000 $ 8,702,000 $ 8,687,000
Accumulated amortization (6,770,000) (6,525,000) (6,441,000)
Amortized cost 1,945,000 2,177,000 2,246,000
Impairment reserve (5,000) 0 0
Carrying value $ 1,940,000 $ 2,177,000 $ 2,246,000