OTHER COMPREHENSIVE INCOME (LOSS), Accumulated Other Comprehensive Gain (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ (8,547)	$ (4,759)
Other comprehensive income before reclassifications	(532)	(3,817)
Amounts reclassified from accumulated other comprehensive loss	278	29
Net other comprehensive income during during the period	(254)	(3,788)	$ 4,881
Ending Balance	(8,801)	(8,547)	(4,759)
Securities Held-To-Maturity and Transferred Securities [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(826)	(878)
Other comprehensive income before reclassifications	66	52
Amounts reclassified from accumulated other comprehensive loss	0	0
Net other comprehensive income during during the period	66	52
Ending Balance	(760)	(826)	(878)
Securities Available-For-Sale [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	736	1,319
Other comprehensive income before reclassifications	(98)	(36)
Amounts reclassified from accumulated other comprehensive loss	(760)	(547)
Net other comprehensive income during during the period	(858)	(583)
Ending Balance	(122)	736	1,319
Defined Benefit Plans [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(8,457)	(5,200)
Other comprehensive income before reclassifications	(500)	(3,833)
Amounts reclassified from accumulated other comprehensive loss	1,038	576
Net other comprehensive income during during the period	538	(3,257)
Ending Balance	$ (7,919)	$ (8,457)	$ (5,200)