Allowance for Loan Losses - Balance of allowance for loan losses (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated for impairment	$ 20,031	$ 20,032
Total allowance	20,031	20,032	$ 19,381	$ 17,017
Individually evaluated for impairment	536	549
Collectively evaluated for impairment	1,689,201	1,665,005
Total loans	1,689,737	1,665,554
Unallocated
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated for impairment	253	632
Total allowance	253	632	757	350
Real Estate Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance			12,746	10,602
Real Estate Loans \| Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated for impairment	2,660	2,769
Total allowance	2,660	2,769	2,420	2,430
Individually evaluated for impairment	536	549
Collectively evaluated for impairment	367,834	341,942
Total loans	368,370	342,491
Real Estate Loans \| Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated for impairment	13,671	13,091
Total allowance	13,671	13,091
Collectively evaluated for impairment	1,083,194	968,442
Total loans	1,083,194	968,442
Real Estate Loans \| Construction and land development
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated for impairment	2,801	2,824
Total allowance	2,801	2,824	2,711	2,617
Collectively evaluated for impairment	189,644	231,090
Total loans	189,644	231,090
Commercial - Non-Real Estate \| Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated for impairment	639	711
Total allowance	639	711	738	1,007
Collectively evaluated for impairment	47,878	122,945
Total loans	47,878	122,945
Consumer - Non-Real Estate \| Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated for impairment	7	5
Total allowance	7	5	$ 9	$ 11
Collectively evaluated for impairment	651	586
Total loans	$ 651	$ 586

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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The balance of financing receivables that were collectively evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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