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Fair Value Measurements (Details) - USD ($) | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
ASSETS |  |
Securities - trading | $ 1,298,000 | $ 804,000
Securities - available for sale | 429,125,000 | 363,644,000
Loans held for sale (at fair value) | 5,459,000 | 6,139,000
Derivative Asset, Fair Value, Gross Asset | 20,029,000 | 22,331,000
Recurring fair value measurements |  |
LIABILITIES |  |
TOTAL RECURRING FAIR VALUE MEASUREMENTS | 436,986,000 | 371,432,000
Recurring fair value measurements | Trading Securities [Member] |  |
ASSETS |  |
Securities - trading | 1,298,000 | 804,000
Recurring fair value measurements | U.S. Government agency securities |  |
ASSETS |  |
Securities - available for sale | 23,228,000 | 24,244,000
Recurring fair value measurements | Agency mortgage-backed securities |  |
ASSETS |  |
Securities - available for sale | 214,564,000 | 175,384,000
Recurring fair value measurements | Agency collateralized mortgage obligations |  |
ASSETS |  |
Securities - available for sale | 114,829,000 | 99,868,000
Recurring fair value measurements | Municipal Bonds [Member] |  |
ASSETS |  |
Securities - available for sale | 2,539,000 | 3,793,000
Recurring fair value measurements | Single issuer trust preferred securities issued by banks and insurers |  |
ASSETS |  |
Securities - available for sale | 2,044,000 | 2,311,000
Recurring fair value measurements | Pooled trust preferred securities issued by banks and insurers |  |
ASSETS |  |
Securities - available for sale | 1,624,000 | 1,584,000
Recurring fair value measurements | Small Business Administration Pooled Securities [Member] |  |
ASSETS |  |
Securities - available for sale | 50,186,000 | 37,189,000
Recurring fair value measurements | Equity securities |  |
ASSETS |  |
Securities - available for sale | 20,111,000 | 19,271,000
Recurring fair value measurements | Loans held for sale |  |
ASSETS |  |
Loans held for sale (at fair value) | 5,459,000 | 6,139,000
Recurring fair value measurements | Derivative Financial Instruments, Assets [Member] |  |
ASSETS |  |
Derivative Asset, Fair Value, Gross Asset | 20,303,000 | 22,761,000
Recurring fair value measurements | Derivative instruments |  |
LIABILITIES |  |
Liabilities, Fair Value Disclosure, Recurring | 19,199,000 | 21,916,000
Nonrecurring fair value measurements |  |
LIABILITIES |  |
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS | 36,872,000 | 38,147,000
Nonrecurring fair value measurements | Collateral dependent impaired loans |  |
ASSETS |  |
Assets, Fair Value Disclosure, Nonrecurring | 33,974,000 | 33,974,000
Nonrecurring fair value measurements | Other real estate owned and other foreclosed assets |  |
ASSETS |  |
Assets, Fair Value Disclosure, Nonrecurring | 2,898,000 | 4,173,000
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements |  |
LIABILITIES |  |
TOTAL RECURRING FAIR VALUE MEASUREMENTS | 21,409,000 | 20,075,000
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements | Trading Securities [Member] |  |
ASSETS |  |
Securities - trading | 1,298,000 | 804,000
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements | Municipal Bonds [Member] |  |
ASSETS |  |
Securities - available for sale |  | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements | Small Business Administration Pooled Securities [Member] |  |
ASSETS |  |
Securities - available for sale | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements | Equity securities |  |
ASSETS |  |
Securities - available for sale | 20,111,000 | 19,271,000
Quoted Prices in Active Markets for Identical Assets (Level 1) | Nonrecurring fair value measurements |  |
LIABILITIES |  |
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS | 0 | 0
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements |  |
LIABILITIES |  |
TOTAL RECURRING FAIR VALUE MEASUREMENTS | 413,953,000 | 349,773,000
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | U.S. Government agency securities |  |
ASSETS |  |
Securities - available for sale | 23,228,000 | 24,244,000
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Agency mortgage-backed securities |  |
ASSETS |  |
Securities - available for sale | 214,564,000 | 175,384,000
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Agency collateralized mortgage obligations |  |
ASSETS |  |
Securities - available for sale | 114,829,000 | 99,868,000
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Municipal Bonds [Member] |  |
ASSETS |  |
Securities - available for sale | 2,539,000 | 3,793,000
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Single issuer trust preferred securities issued by banks and insurers |  |
ASSETS |  |
Securities - available for sale | 2,044,000 | 2,311,000
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Small Business Administration Pooled Securities [Member] |  |
ASSETS |  |
Securities - available for sale | 50,186,000 | 37,189,000
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Loans held for sale |  |
ASSETS |  |
Securities - available for sale | 5,459,000 | 6,139,000
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Derivative Financial Instruments, Assets [Member] |  |
ASSETS |  |
Derivative Asset, Fair Value, Gross Asset | 20,303,000 | 22,761,000
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Derivative instruments |  |
LIABILITIES |  |
Liabilities, Fair Value Disclosure, Recurring | 19,199,000 | 21,916,000
Significant Other Observable Inputs (Level 2) | Nonrecurring fair value measurements |  |
LIABILITIES |  |
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS | 0 | 0
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements |  |
LIABILITIES |  |
TOTAL RECURRING FAIR VALUE MEASUREMENTS | 1,624,000 | 1,584,000
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements | U.S. Government agency securities |  |
ASSETS |  |
Securities - available for sale |  |
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements | Municipal Bonds [Member] |  |
ASSETS |  |
Securities - available for sale |  | 0
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements | Pooled trust preferred securities issued by banks and insurers |  |
ASSETS |  |
Securities - available for sale | 1,624,000 | 1,584,000
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements | Small Business Administration Pooled Securities [Member] |  |
ASSETS |  |
Securities - available for sale | 0 | 0
Significant Unobservable Inputs (Level 3) | Nonrecurring fair value measurements |  |
LIABILITIES |  |
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS | 36,872,000 | 38,147,000
Significant Unobservable Inputs (Level 3) | Nonrecurring fair value measurements | Collateral dependent impaired loans |  |
ASSETS |  |
Assets, Fair Value Disclosure, Nonrecurring | 33,974,000 | 33,974,000
Significant Unobservable Inputs (Level 3) | Nonrecurring fair value measurements | Other real estate owned and other foreclosed assets |  |
ASSETS |  |
Assets, Fair Value Disclosure, Nonrecurring | $ 2,898,000 | $ 4,173,000

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