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Consolidated Statement of Cash Flows - Additional information (Details)	9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($) lease	Dec. 31, 2020 USD ($)
Income tax payments	$ 200,000	$ 315,000
Total interest payments	6,898,000	8,726,000
Non-cash transfers to other real estate owned	8,000	$ 40,000
Number of financial leases. | lease		2
Finance Lease, Asset	2,752,000		$ 2,956,000
Finance Lease, Liability	$ 2,953,000		$ 3,109,000
Office equipment leased
Number of financial leases. | lease		1
Finance Lease, Asset		$ 149,000
Finance Lease, Liability		$ 149,000
Branch location
Number of financial leases. | lease		1

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