DERIVATIVES AND HEDGING (Derivatives Designated as Hedging, by Balance Sheet Location) (Details) - USD ($) $ in Thousands		Sep. 30, 2017	Dec. 31, 2016
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value		$ 7,186	$ 8,330
Liability Derivatives, Fair Value		7,186	8,330
Interest rate swaps [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value		7,186	8,330
Liability Derivatives, Fair Value		7,186	8,330
Interest rate swaps [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Notional/Contract Amount		4,441	5,855
Liability Derivatives, Notional/Contract Amount		4,441	5,855
Interest rate swaps [Member] | Designated as Hedging Instrument [Member] | Loans Receivable [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	[1]	531	660
Interest rate swaps [Member] | Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives, Fair Value	[2]	$ 531	$ 660

[1] Included in Loans receivable on the Consolidated Statements of Financial Condition.

[2] Included in Other liabilities on the Consolidated Statements of Financial Condition.