Allowance for Loan Losses, Summary of Changes in Allowance for Loan Losses, by Portfolio Type (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance			$ 9,225	$ 11,114
Charge-offs			(533)	(1,772)
Recoveries			1,882	223
Provision	$ (409)	$ 1,302	196	2,013
Ending allowance	10,770	11,578	10,770	11,578
Real Estate [Member]
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance			5,516	6,497
Charge-offs			(97)	(654)
Recoveries			158	53
Provision			2,061	(93)
Ending allowance	7,638	5,803	7,638	5,803
Real Estate [Member] \| Construction & Land Development [Member]
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance			628	1,232
Charge-offs			0	0
Recoveries			3	1
Provision			0	(307)
Ending allowance	631	926	631	926
Real Estate [Member] \| Farmland [Member]
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance			5	19
Charge-offs			0	0
Recoveries			0	0
Provision			24	(13)
Ending allowance	29	6	29	6
Real Estate [Member] \| 1 - 4 Family [Member]
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance			1,078	1,204
Charge-offs			(97)	(1)
Recoveries			84	25
Provision			(160)	(190)
Ending allowance	905	1,038	905	1,038
Real Estate [Member] \| Multifamily [Member]
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance			994	591
Charge-offs			0	0
Recoveries			20	20
Provision			384	(235)
Ending allowance	1,398	376	1,398	376
Real Estate [Member] \| Non-Farm Non-Residential [Member]
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance			2,811	3,451
Charge-offs			0	(653)
Recoveries			51	7
Provision			1,813	652
Ending allowance	4,675	3,457	4,675	3,457
Non-Real Estate [Member]
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance			3,709	4,617
Charge-offs			(436)	(1,118)
Recoveries			1,724	170
Provision			(1,865)	2,106
Ending allowance	3,132	5,775	3,132	5,775
Non-Real Estate [Member] \| Agricultural [Member]
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance			187	74
Charge-offs			(49)	(33)
Recoveries			12	8
Provision			374	33
Ending allowance	524	82	524	82
Non-Real Estate [Member] \| Commercial and Industrial [Member]
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance			2,377	3,543
Charge-offs			(102)	(88)
Recoveries			1,615	12
Provision			(1,912)	1,730
Ending allowance	1,978	5,197	1,978	5,197
Non-Real Estate [Member] \| Consumer and Other [Member]
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance			1,125	972
Charge-offs			(285)	(997)
Recoveries			97	150
Provision			(324)	371
Ending allowance	613	496	613	496
Non-Real Estate [Member] \| Unallocated [Member]
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance			20	28
Charge-offs			0	0
Recoveries			0	0
Provision			(3)	(28)
Ending allowance	$ 17	$ 0	$ 17	$ 0

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

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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- Definition

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

+ References

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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.

+ References

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- Definition

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

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