Loans and Allowance for Loan Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 25,786	$ 22,153	$ 23,243	$ 22,189
Charge-offs	(530)	(432)	(1,459)	(944)
Recoveries	332	127	604	403
Provision (Benefit)	2,250	0	5,450	200
Ending Balance	27,838	21,848	27,838	21,848
Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	16,621	10,108	12,869	9,358
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit)	1,688	1,587	5,440	2,337
Ending Balance	18,309	11,695	18,309	11,695
Commercial land and development
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	68	75	50	77
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit)	30	37	48	35
Ending Balance	98	112	98	112
Commercial construction
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	508	491	371	821
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit)	38	(148)	175	(478)
Ending Balance	546	343	546	343
Residential construction
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	51	46	50	87
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit)	(10)	14	(9)	(27)
Ending Balance	41	60	41	60
Residential
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	188	188	192	220
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit)	(13)	19	(17)	(13)
Ending Balance	175	207	175	207
Farmland
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	616	594	645	615
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit)	48	72	19	51
Ending Balance	664	666	664	666
Secured
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	6,284	9,194	6,859	9,476
Charge-offs	(346)	(347)	(928)	(787)
Recoveries	68	84	152	219
Provision (Benefit)	356	(1,537)	279	(1,514)
Ending Balance	6,362	7,394	6,362	7,394
Unsecured
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	265	209	207	179
Charge-offs	(2)	0	(2)	0
Recoveries	0	0	0	0
Provision (Benefit)	15	9	73	39
Ending Balance	278	218	278	218
Paycheck Protection Program (“PPP”)
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	0	0	0	0
Charge-offs	0	0	(21)	0
Recoveries	21	0	21	0
Provision (Benefit)	(21)	0	0	0
Ending Balance	0	0	0	0
Consumer and other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	537	484	889	632
Charge-offs	(182)	(85)	(508)	(157)
Recoveries	243	43	431	184
Provision (Benefit)	(62)	196	(276)	(21)
Ending Balance	536	638	536	638
Unallocated
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	648	764	1,111	724
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit)	181	(249)	(282)	(209)
Ending Balance	$ 829	$ 515	$ 829	$ 515

Amount of increase in allowance for credit loss on financing receivable from recovery.

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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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 of expense related to estimated loss from loan and lease transactions.

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