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Fair Value of Financial Instruments - Narrative (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Accrued interest excluded from carrying value $ 166  
Allowance for mortgage loan losses 71 $ 76
Other Assets | Rabbi Trust | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash surrender value $ 10,755