ACCUMULATED OTHER COMPREHENSIVE INCOME (Changes in Accumulated Other Comprehensive Income By Component) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			12 Months Ended
	Mar. 31, 2013		Mar. 31, 2012	Dec. 31, 2012
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax [Abstract]
Unrealized Gains and Losses on Available- for-Sales Securities, Opening Balance	$ 7,517	[1]
Unrealized Gains and Losses on Available- for-Sales Securities, Other comprehensive income before reclassification	(643)	[1]
Unrealized Gains and Losses on Available- for-Sales Securities, Amounts reclassified from accumulated other comprehensive income	(1)	[1]
Unrealized Gains and Losses on Available- for-Sales Securities,Net current period other comprehensive income	(644)	[1]
Unrealized Gains and Losses on Available- for-Sales Securities, Ending Balance	6,873	[1]		7,517	[1]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax [Abstract]
Defined Benefit Pension Items, Opening Balance	(1,828)	[1]
Defined Benefit Pension Items, Other comprehensive income before reclassification	(90)	[1]
Defined Benefit Pension Items, Amounts reclassified from accumulated other comprehensive income	33	[1]
Defined Benefit Pension Items, Net current period other comprehensive income	(57)	[1]		91
Defined Benefit Pension Items, Ending Balance	(1,885)	[1]		(1,828)	[1]
Accumulated other comprehensive income, Opening Balance	5,689	[1]	5,139	5,139
Other comprehensive income before reclassification	(733)	[1]
Amounts reclassified from accumulated other comprehensive income	32	[1]
Net current period other comprehensive income	(701)	[1]	1,102
Accumulated other comprehensive income, Ending Balance	4,988	[1]	6,241	5,689	[1]
Unrealized gain on securities available for sale without other than temporary impairment Balance			7,688	7,688
Unrealized gain on securities available for sale without other than temporary impairment Current Period Change			1,065
Unrealized gain on securities available for sale without other than temporary impairment, Balance			8,753
Unrealized loss on securities available for sale with other than temporary impairment, Balance			(523)	(523)
Unrealized loss on securities available for sale with other than temporary impairment, Current Period Change			(54)
Unrealized loss on securities available for sale with other than temporary impairment, Balance			(577)
Total unrealized gain on securities available for sale, Opening Balance			7,165	7,165
Total unrealized gain on securities available for sale, Current Period Change			1,011
Total unrealized gain on securities available for sale, Ending Balance			8,176
Unrealized loss on defined benefit pension plans, Opening Balance			(2,026)	(2,026)
Unrealized loss on defined benefit pension plans, Current Period Change			91
Unrealized loss on defined benefit pension plans, Ending Balance			$ (1,935)

[1] All amounts are net of tax.