ACCUMULATED OTHER COMPREHENSIVE INCOME/LOSS ("AOCI") (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			$ 197,258
Other comprehensive income (loss) before reclassifications	$ 568	$ (1,507)	2,180	$ (417)
Amounts reclassified from AOCI	596	(57)	897	(31)
Net other comprehensive income (loss)	1,164	(1,564)	3,077	(448)
Ending balance	210,307	191,151	210,307	191,151
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net gain on sale of securities available for sale	18	160	24	186
Interest income - U.S. Government agency obligations	(197)	(531)	(615)	(1,072)
Subtotal, pre-tax	7,944	6,697	14,758	11,947
Income tax expense	(2,159)	(1,579)	(4,135)	(2,820)
NET INCOME	5,785	5,118	10,623	9,127
Reclassification Out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net gain on sale of securities available for sale	18	160	24	186
Interest income - U.S. Government agency obligations	(1,022)	(67)	(1,510)	(134)
Subtotal, pre-tax	(1,004)	93	(1,486)	52
Income tax expense	408	(36)	589	(21)
NET INCOME	(596)	57	(897)	31
Accumulated Other Comprehensive Income (Loss) [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(6,663)	(5,727)	(8,576)	(6,843)
Ending balance	(5,499)	(7,291)	(5,499)	(7,291)
Unrealized Gains and Losses on Available for Sale Securities [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	3,044	3,712	1,436	2,637
Other comprehensive income (loss) before reclassifications	568	(1,507)	2,180	(417)
Amounts reclassified from AOCI	(10)	(97)	(14)	(112)
Net other comprehensive income (loss)	558	(1,604)	2,166	(529)
Ending balance	3,602	2,108	3,602	2,108
Unrealized Losses on Securities Transferred from Available for Sale to Held to Maturity [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,090)	(1,764)	(1,395)	(1,805)
Other comprehensive income (loss) before reclassifications	0	0	0	0
Amounts reclassified from AOCI	606	40	911	81
Net other comprehensive income (loss)	606	40	911	81
Ending balance	(484)	(1,724)	(484)	(1,724)
Pension and Post-Retirement Plan Items [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(8,617)	(7,675)	(8,617)	(7,675)
Other comprehensive income (loss) before reclassifications	0	0	0	0
Amounts reclassified from AOCI	0	0	0	0
Net other comprehensive income (loss)	0	0	0	0
Ending balance	$ (8,617)	$ (7,675)	$ (8,617)	$ (7,675)