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Commitments and Contingent Liabilities (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Loss Contingencies [Line Items]
Reserve for losses on unfunded commitments and letters of credit	$ 963,000	$ 872,000
Commitments to extend credit
Loss Contingencies [Line Items]
Amount of commitment	265,500,000	213,900,000
Standby letters of Credit
Loss Contingencies [Line Items]
Amount of commitment	$ 13,400,000	$ 13,300,000