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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, 2016 | Dec. 31, 2015
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Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | $ 8,555 | $ 3,970
Level 3 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 8,555 | 3,970
Impaired Loans | Commercial real estate |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 417 | 431
Impaired Loans | Commercial real estate | Level 3 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 417 | 431
Impaired Loans | Construction, land development, land |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 251 |
Impaired Loans | Construction, land development, land | Level 3 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 251 |
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 | 8 | 13
Impaired Loans | 1-4 family residential properties | Level 3 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 8 | 13
Impaired Loans | Commercial Loans |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 4,178 | 695
Impaired Loans | Commercial Loans | Level 3 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 4,178 | 695
Impaired Loans | Factored receivables |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 1,495 | 1,156
Impaired Loans | Factored receivables | Level 3 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 1,495 | 1,156
Impaired Loans | PCI |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 1,001 | 170
Impaired Loans | PCI | Level 3 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 1,001 | 170
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 | 253 | 1,377
Other real estate owned | Construction, land development, land | Level 3 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 253 | 1,377
Other real estate owned | 1-4 family residential properties |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 254 | 128
Other real estate owned | 1-4 family residential properties | Level 3 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 254 | $ 128
Other real estate owned | Commercial Loans |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | 698 |
Other real estate owned | Commercial Loans | Level 3 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure, Nonrecurring | $ 698 |

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