ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Changes in Accumulated Other Comprehensive Income By Component) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized Gains and Losses on Available- for-Sales Securities, Opening Balance			$ 784	$ (722)
Unrealized Gains and Losses on Available- for-Sales Securities, Other comprehensive income before reclassification			(8,903)	2,706
Unrealized Gains and Losses on Available- for-Sales Securities, Amounts reclassified from accumulated other comprehensive income (loss)			6	(31)
Unrealized Gains and Losses on Available- for-Sales Securities, Net current period other comprehensive income			(8,897)	2,675
Unrealized Gains and Losses on Available- for-Sales Securities, Ending Balance	$ (8,041)	$ 1,953	(8,041)	1,953
Defined Benefit Pension Items, Opening Balance			(1,454)	(1,665)
Defined Benefit Pension Items, Other comprehensive income before reclassification			0	0
Defined Benefit Pension Items, Amounts reclassified from accumulated other comprehensive income (loss)			98	81
Defined Benefit Pension Items, Net current period other comprehensive income	49	41	98	81
Defined Benefit Pension Items, Ending Balance	(1,669)	(1,584)	(1,669)	(1,584)
Total, Opening Balance			(670)	(2,387)
Total, Other comprehensive income before reclassification			(8,903)	2,706
Total, Amounts reclassified from accumulated other comprehensive income (loss)			104	50
Total, Net current period other comprehensive income	(1,722)	2,271	(8,799)	2,756
Total, Ending Balance	$ (9,710)	$ 369	(9,710)	$ 369
Accounting Standards Update 2018-02 [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax			140
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax			(313)
Other Comprehensive Income Loss, Adjustment, Net of Tax			(173)
Accounting Standards Update 2016-01 [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax			(68)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax			0
Other Comprehensive Income Loss, Adjustment, Net of Tax			$ (68)