OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
OTHER COMPREHENSIVE INCOME (LOSS)
Unrealized holding gains on available for sale securities	$ 2,595	$ 2,725	$ 4,211	$ 12,465
Reclassification adjustment for gains realized in income		(383)		(449)
Income tax effect	(1,062)	(950)	(1,668)	(4,867)
Net change in unrealized gains on available for sale securities	1,533	1,392	2,543	7,149
Reclassification adjustment for amortization realized in income	113	99	227	193
Income tax effect	(47)	(41)	(64)	(74)
Net change in post-retirement obligation	66	58	163	119
Change in fair value of derivatives used for cash flow hedges	(1,385)	(661)	(1,360)	(2,684)
Reclassification adjustment for losses realized in income	459	239	734	489
Income tax effect	379	171	253	891
Net change in unrealized loss on cash flow hedges	(547)	(251)	(373)	(1,304)
Other comprehensive income	$ 1,052	$ 1,199	$ 2,333	$ 5,964