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FAIR VALUE MEASUREMENTS (Details) - USD ($) | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading Securities | $ 1,324,000 | $ 804,000
Assets |  |
Securities - available for sale | 447,498,000 | 363,644,000
Disposal Group, Including Discontinued Operation, Mortgage Loans | 4,768,000 | 6,139,000
Total | 17,318,000 | 22,331,000
Fair Value, Measurements, Recurring [Member] |  |
Liabilities |  |
Total recurring fair value measurements | 455,373,000 | 371,432,000
Fair Value, Measurements, Recurring [Member] | Trading securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading Securities | 1,324,000 | 804,000
Fair Value, Measurements, Recurring [Member] | U.S. Government agency securities |  |
Assets |  |
Securities - available for sale | 35,430,000 | 24,244,000
Fair Value, Measurements, Recurring [Member] | Agency mortgage-backed securities |  |
Assets |  |
Securities - available for sale | 215,764,000 | 175,384,000
Fair Value, Measurements, Recurring [Member] | Agency collateralized mortgage obligations |  |
Assets |  |
Securities - available for sale | 122,012,000 | 99,868,000
Fair Value, Measurements, Recurring [Member] | State, county, and municipal securities |  |
Assets |  |
Securities - available for sale | 2,274,000 | 3,793,000
Fair Value, Measurements, Recurring [Member] | Single issuer trust preferred securities issued by banks and insurers |  |
Assets |  |
Securities - available for sale | 2,016,000 | 2,311,000
Fair Value, Measurements, Recurring [Member] | Pooled trust preferred securities issued by banks and insurers |  |
Assets |  |
Securities - available for sale | 1,640,000 | 1,584,000
Fair Value, Measurements, Recurring [Member] | Small Business Administration Pooled Securities [Member] |  |
Assets |  |
Securities - available for sale | 47,778,000 | 37,189,000
Fair Value, Measurements, Recurring [Member] | Equity securities |  |
Assets |  |
Securities - available for sale | 20,584,000 | 19,271,000
Fair Value, Measurements, Recurring [Member] | Loans held for sale |  |
Assets |  |
Disposal Group, Including Discontinued Operation, Mortgage Loans | 4,768,000 | 6,139,000
Fair Value, Measurements, Recurring [Member] | Derivative instruments |  |
Assets |  |
Total | 17,476,000 | 22,761,000
Fair Value, Measurements, Recurring [Member] | Derivative instruments |  |
Liabilities |  |
Liabilities | 15,693,000 | 21,916,000
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Liabilities |  |
Total recurring fair value measurements | 21,908,000 | 20,075,000
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Trading securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading Securities | 1,324,000 | 804,000
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | State, county, and municipal securities |  |
Assets |  |
Securities - available for sale |  | 0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Small Business Administration Pooled Securities [Member] |  |
Assets |  |
Securities - available for sale | 0 | 0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Equity securities |  |
Assets |  |
Securities - available for sale | 20,584,000 | 19,271,000
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Liabilities |  |
Total recurring fair value measurements | 431,825,000 | 349,773,000
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Government agency securities |  |
Assets |  |
Securities - available for sale | 35,430,000 | 24,244,000
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Agency mortgage-backed securities |  |
Assets |  |
Securities - available for sale | 215,764,000 | 175,384,000
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Agency collateralized mortgage obligations |  |
Assets |  |
Securities - available for sale | 122,012,000 | 99,868,000
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | State, county, and municipal securities |  |
Assets |  |
Securities - available for sale | 2,274,000 | 3,793,000
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Single issuer trust preferred securities issued by banks and insurers |  |
Assets |  |
Securities - available for sale | 2,016,000 | 2,311,000
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Small Business Administration Pooled Securities [Member] |  |
Assets |  |
Securities - available for sale | 47,778,000 | 37,189,000
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Loans held for sale |  |
Assets |  |
Securities - available for sale | 4,768,000 | 6,139,000
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Derivative instruments |  |
Assets |  |
Total | 17,476,000 | 22,761,000
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Derivative instruments |  |
Liabilities |  |
Liabilities | 15,693,000 | 21,916,000
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Liabilities |  |
Total recurring fair value measurements | 1,640,000 | 1,584,000
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | U.S. Government agency securities |  |
Assets |  |
Securities - available for sale |  |
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | State, county, and municipal securities |  |
Assets |  |
Securities - available for sale |  | 0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Pooled trust preferred securities issued by banks and insurers |  |
Assets |  |
Securities - available for sale | 1,640,000 | 1,584,000
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Small Business Administration Pooled Securities [Member] |  |
Assets |  |
Securities - available for sale | 0 | 0
Fair Value, Measurements, Nonrecurring [Member] |  |
Assets |  |
Assets And Liabilities Fair Value Disclosure Nonrecurring | 34,179,000 | 38,147,000
Fair Value, Measurements, Nonrecurring [Member] | Collateral dependent impaired loans |  |
Assets |  |
Assets nonrecurring | 33,567,000 | 33,974,000
Fair Value, Measurements, Nonrecurring [Member] | Other real estate owned and other foreclosed assets |  |
Assets |  |
Assets nonrecurring | 612,000 | 4,173,000
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Assets |  |
Assets And Liabilities Fair Value Disclosure Nonrecurring | 34,179,000 | 38,147,000
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Collateral dependent impaired loans |  |
Assets |  |
Assets nonrecurring | 33,567,000 | 33,974,000
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Other real estate owned and other foreclosed assets |  |
Assets |  |
Assets nonrecurring | $ 612,000 | $ 4,173,000

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