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Fair Values of Financial Instruments (Narrative) (Details)
12 Months Ended
Dec. 31, 2021
USD ($)
loan
Dec. 31, 2020
USD ($)
Loan [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Number of loans with related allowance | loan 1  
Impaired Financing Receivable, with Related Allowance, Recorded Investment $ 1,517,000  
Valuation allowance 272,000  
Impaired Loans, Cumulative Charge-Offs 0  
Impaired Loans [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 1,402,000  
Impaired Financing Receivable, Recorded Investment 1,674,000 $ 2,662,000
Impaired Financing Receivable, Related Allowance $ 272,000  
Number of impaired loans not requiring a valuation allowance | loan 3  
Impaired Financing Receivable, with No Related Allowance, Recorded Investment $ 157,000 $ 2,662,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment 1,517,000  
Impaired Loans, Cumulative Charge-Offs $ 0