ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Reclassification Adjustment) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Unrealized gains and losses on available-for-sale securities
Net securities gains (losses)		$ 32	$ 66	$ 42
Income tax expense		(13)	(26)	(17)
Net of tax		19	40	25
Amortization of defined benefit pension items
Salaries and employee benefits	[1]	(265)	(215)	(244)
Income tax expense		104	85	97
Net of tax		(161)	(130)	(147)
Total reclassifications for the period		$ (142)	$ (90)	$ (122)

[1] Included in the computation of net pension plan expense as more fully discussed in Note 11.