FAIR VALUE MEASURES (Details 4) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 42,152	$ 41,965
Assets, Fair Value Disclosure, Recurring	941,106	932,973
Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	42,152	41,965
Assets, Fair Value Disclosure, Recurring	1,500	1,500
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure, Recurring	$ 1,500	$ 1,500
Valuation Technique	Discounted par values	Discounted par values
Fair Value Measurements Unobservable Inputs	Credit quality of underlying issuer	Credit quality of underlying issuer
Fair value inputs discount rate range	0.00%	0.00%
Fair Value, Measurements, Recurring [Member] | Weighted Average Daily Balance [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	0.00%	0.00%
Impaired Loans Carried At Fair Value [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 27,643	$ 28,253
Valuation Technique	Third-party appraisals and discounted cash flows	Third-party appraisals and discounted cash flows
Fair Value Measurements Unobservable Inputs	Collateral discounts and discount rates	Collateral discounts and discount rates
Impaired Loans Carried At Fair Value [Member] | Fair Value, Measurements, Nonrecurring [Member] | Maximum [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	99.00%	100.00%
Impaired Loans Carried At Fair Value [Member] | Fair Value, Measurements, Nonrecurring [Member] | Minimum [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	15.00%	15.00%
Impaired Loans Carried At Fair Value [Member] | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average Daily Balance [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	28.00%	28.00%
Other real estate owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 2,841	$ 1,172
Other real estate owned [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	2,841	1,172
Other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 2,841	$ 1,172
Valuation Technique	Third-party appraisals, sales contracts, broker price opinions	Third-party appraisals, sales contracts, broker price opinions
Fair Value Measurements Unobservable Inputs	Collateral discounts and estimated costs to sell	Collateral discounts and estimated costs to sell
Other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Maximum [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	83.00%	74.00%
Other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Minimum [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	15.00%	15.00%
Other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average Daily Balance [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	21.00%	22.00%
Purchased other real estate owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 11,668	$ 12,540
Purchased other real estate owned [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	11,668	12,540
Purchased other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 11,668	$ 12,540
Valuation Technique	Third-party appraisals	Third-party appraisals
Fair Value Measurements Unobservable Inputs	Collateral discounts and estimated costs to sell	Collateral discounts and estimated costs to sell
Purchased other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Maximum [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	74.00%	74.00%
Purchased other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Minimum [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	10.00%	10.00%
Purchased other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average Daily Balance [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	14.00%	15.00%