Allowance for Loan Losses - Summary of Changes in Allowance for Loan Losses, by Portfolio Type (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	$ 10,929	$ 10,776
Charge-offs	(298)	(636)
Recoveries	85	74
Provision	1,245	787
Ending allowance	11,961	11,001
Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	7,815	7,622
Charge-offs	(10)	(16)
Recoveries	12	5
Provision	950	83
Ending allowance	8,767	7,694
Real Estate \| Construction & land development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	423	581
Charge-offs	0	0
Recoveries	0	0
Provision	266	19
Ending allowance	689	600
Real Estate \| Farmland
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	50	41
Charge-offs	0	0
Recoveries	0	0
Provision	(3)	3
Ending allowance	47	44
Real Estate \| 1- 4 Family
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	1,027	911
Charge-offs	(10)	(16)
Recoveries	12	2
Provision	398	(18)
Ending allowance	1,427	879
Real Estate \| Multifamily
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	1,038	1,318
Charge-offs	0	0
Recoveries	0	0
Provision	(102)	10
Ending allowance	936	1,328
Real Estate \| Non-farm non-residential
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	5,277	4,771
Charge-offs	0	0
Recoveries	0	3
Provision	391	69
Ending allowance	5,668	4,843
Non-Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	3,114	3,154
Charge-offs	(288)	(620)
Recoveries	73	69
Provision	295	704
Ending allowance	3,194	3,307
Non-Real Estate \| Agricultural
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	95	339
Charge-offs	0	0
Recoveries	0	0
Provision	0	15
Ending allowance	95	354
Non-Real Estate \| Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	1,909	1,909
Charge-offs	(92)	(246)
Recoveries	7	8
Provision	368	305
Ending allowance	2,192	1,976
Non-Real Estate \| Consumer and other
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	1,110	891
Charge-offs	(196)	(374)
Recoveries	66	61
Provision	(85)	370
Ending allowance	895	948
Non-Real Estate \| Unallocated
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	0	15
Charge-offs	0	0
Recoveries	0	0
Provision	12	14
Ending allowance	$ 12	$ 29

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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- Definition

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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