Allowance for Loan Losses, Age Analysis of TDRs (Details) $ in Thousands	12 Months Ended
Dec. 31, 2015 USD ($) Contract	Dec. 31, 2014 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Accruing loans, current	$ 3,431	$ 2,998
Nonaccrual	2,276	230
Total TDRs	5,707	5,432
30-89 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, past due	$ 0	$ 2,204
1-4 Family and Non-Farm Non-Residential [Member] \| Interest Only with Reduction in Scheduled Amortization Payments and Contractual Interest Rate [Member]
Financing Receivable, Modifications [Line Items]
Number of troubled debt restructurings \| Contract		1
Total TDRs		$ 2,200
Raw Land [Member] \| Interest Only with Reduction in Scheduled Amortization Payments and Contractual Interest Rate [Member]
Financing Receivable, Modifications [Line Items]
Number of troubled debt restructurings \| Contract	1
Total TDRs	$ 400
Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, current	3,431	2,998
Nonaccrual	2,276	230
Total TDRs	5,707	5,432
Real Estate [Member] \| 30-89 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, past due	0	2,204
Real Estate [Member] \| Construction & Land Development [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, current	0	0
Nonaccrual	368	0
Total TDRs	368	0
Real Estate [Member] \| Construction & Land Development [Member] \| 30-89 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, past due	0	0
Real Estate [Member] \| Farmland [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, current	0	0
Nonaccrual	0	0
Total TDRs	0	0
Real Estate [Member] \| Farmland [Member] \| 30-89 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, past due	0	0
Real Estate [Member] \| 1- 4 Family [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, current	0	0
Nonaccrual	1,702	0
Total TDRs	1,702	1,752
Real Estate [Member] \| 1- 4 Family [Member] \| 30-89 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, past due	0	1,752
Real Estate [Member] \| Multifamily [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, current	0	0
Nonaccrual	0	0
Total TDRs	0	0
Real Estate [Member] \| Multifamily [Member] \| 30-89 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, past due	0	0
Real Estate [Member] \| Non-Farm Non-Residential [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, current	3,431	2,998
Nonaccrual	206	230
Total TDRs	3,637	3,680
Real Estate [Member] \| Non-Farm Non-Residential [Member] \| 30-89 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, past due	0	452
Non-Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, current	0	0
Nonaccrual	0	0
Total TDRs	0	0
Non-Real Estate [Member] \| 30-89 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, past due	0	0
Non-Real Estate [Member] \| Agricultural [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, current	0	0
Nonaccrual	0	0
Total TDRs	0	0
Non-Real Estate [Member] \| Agricultural [Member] \| 30-89 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, past due	0	0
Non-Real Estate [Member] \| Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, current	0	0
Nonaccrual	0	0
Total TDRs	0	0
Non-Real Estate [Member] \| Commercial and Industrial [Member] \| 30-89 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, past due	0	0
Non-Real Estate [Member] \| Consumer and Other [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, current	0	0
Nonaccrual	0	0
Total TDRs	0	0
Non-Real Estate [Member] \| Consumer and Other [Member] \| 30-89 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Accruing loans, past due	$ 0	$ 0

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- Definition

Recorded investment in financing receivables after undergoing trouble debt restructuring that are on nonaccrual status as of the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Recorded investment in financing receivables that are past due and still accruing.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

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- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

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