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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