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Loans Receivable And Allowance For Loan Losses - Narrative (Details) - USD ($)
Dec. 31, 2019
Sep. 30, 2019
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]    
Unamortized loan commitment and origination fees and unamortized discounts or premiums $ 1,240,000  
Troubled debt restructured loan 3,248,000 $ 3,269,000
Loans and leases receivable, impaired, commitment to lend 0 0
Allowance for loan losses allocated to TDR loans $ 53,000 $ 56,000