COMMITMENTS AND CONTINGENCIES (Narrative) (Details)		3 Months Ended		9 Months Ended
		Sep. 30, 2016 USD ($) swap	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Other Commitments [Line Items]
Loss Contingency Accrual		$ 0		$ 0		$ 0
Loss on Cash Flow Hedge Ineffectiveness		$ 0		$ 0
Number of interest rate swap agreements | swap		2
Derivative, Number of Instruments Held		2		2
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred		$ 1,900,000
Unrealized Gain (Loss) on Derivatives		226,000	$ 14,000	$ 610,000	$ 33,000
Proceeds from Legal Settlements		638,000
Commercial Loan
Other Commitments [Line Items]
Cash held as collateral		15,100,000		15,100,000
Interest rate swaps
Other Commitments [Line Items]
Derivative Instrument Payment Of Interest Rate Swaps Designated As Cash Flow Hedges				1,200,000	$ 1,300,000
Notional amount of derivative		43,000,000		43,000,000		43,000,000
Cash held as collateral		13,500,000		13,500,000
Forward-Starting Interest Rate Swap
Other Commitments [Line Items]
Derivative Instrument Payment Of Interest Rate Swaps Designated As Cash Flow Hedges		351,000
Notional amount of derivative		50,000,000		50,000,000		$ 50,000,000
Cash held as collateral		$ 898,000		$ 898,000
Federal home loan bank 30-day | Interest rate swaps
Other Commitments [Line Items]
Derivative, Number of Instruments Held	[1]	50,000		50,000			28,000
Notional amount of derivative	[1]	$ 268,952,000		$ 268,952,000			$ 142,944,000
Commercial and Industrial Sector [Member] | Interest rate swaps
Other Commitments [Line Items]
Derivative, Number of Instruments Held	[2]	50,000		50,000			28,000
Notional amount of derivative	[2]	$ 268,952,000		$ 268,952,000			$ 142,944,000
Contract One [Member] | Interest rate swaps
Other Commitments [Line Items]
Notional amount of derivative		$ 10,000,000		10,000,000
Contract One [Member] | Forward-Starting Interest Rate Swap
Other Commitments [Line Items]
Number of interest rate swap agreements | swap		1
Notional amount of derivative		$ 25,000,000		$ 25,000,000

[1] Presented within other assets on the consolidated statements of condition.

[2] Presented within accrued interest and other liabilities on the consolidated statements of condition.