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Fair Value Disclosures - Fair Value of Assets Measured on Non-recurring Basis (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 14,481	$ 12,220
Impaired Loans | Commercial real estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	5,450	42
Impaired Loans | Construction, land development, land
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	93
Impaired Loans | 1-4 family residential properties
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	98	85
Impaired Loans | Farmland
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	842
Impaired Loans | Commercial Loans
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	2,124	7,785
Impaired Loans | Factored receivables
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	4,925	3,777
Impaired Loans | Consumer
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	63	191
Impaired Loans | PCI
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	67
Other real estate owned | Commercial real estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	819	138
Other real estate owned | Construction, land development, land
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		202
Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	14,481	12,220
Level 3 | Impaired Loans | Commercial real estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	5,450	42
Level 3 | Impaired Loans | Construction, land development, land
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	93
Level 3 | Impaired Loans | 1-4 family residential properties
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	98	85
Level 3 | Impaired Loans | Farmland
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	842
Level 3 | Impaired Loans | Commercial Loans
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	2,124	7,785
Level 3 | Impaired Loans | Factored receivables
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	4,925	3,777
Level 3 | Impaired Loans | Consumer
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	63	191
Level 3 | Impaired Loans | PCI
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	67
Level 3 | Other real estate owned | Commercial real estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 819	138
Level 3 | Other real estate owned | Construction, land development, land
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		$ 202

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

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