ACCUMULATED OTHER COMPREHENSIVE INCOME AMOUNT RECLASSIFIED FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Other Accumulated Comprehensive income reclassified from AOCI [Line Items]
Net gains (losses) on sales of investment securities	$ 0	$ 516
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	103	103
Defined Benefit Plan, Amortization of Gain (Loss)	(522)	(438)
Other Comprehensive Income, Reclassification, Amortization of Defined Benefit Plans items, Pre-tax	(419)	(335)
Total	$ (419)	$ 181