OTHER COMPREHENSIVE INCOME (LOSS), Accumulated Other Comprehensive Gain (Loss) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ (4,759)	$ (9,640)
Other comprehensive income before reclassifications	(3,817)	3,627
Amounts reclassified from accumulated other comprehensive loss	29	1,254
Net other comprehensive income during during the period	(3,788)	4,881	69
Ending Balance	(8,547)	(4,759)	(9,640)
Securities Held-To-Maturity and Transferred Securities [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(878)	(1,043)
Other comprehensive income before reclassifications	52	165
Amounts reclassified from accumulated other comprehensive loss	0	0
Net other comprehensive income during during the period	52	165
Ending Balance	(826)	(878)
Securities Available-For-Sale [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	1,319	1,178
Other comprehensive income before reclassifications	(36)	201
Amounts reclassified from accumulated other comprehensive loss	(547)	(60)
Net other comprehensive income during during the period	(583)	141
Ending Balance	736	1,319
Defined Benefit Plans [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(5,200)	(9,775)
Other comprehensive income before reclassifications	(3,833)	3,261
Amounts reclassified from accumulated other comprehensive loss	576	1,314
Net other comprehensive income during during the period	(3,257)	4,575
Ending Balance	$ (8,457)	$ (5,200)