ACCUMULATED OTHER COMPREHENSIVE INCOME (AOCI) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	$ 2,886	$ (3,070)
Other comprehensive loss before reclassifications	(991)	(1,828)
Amounts reclassified from AOCI	(229)	0
Net current-period other comprehensive loss	(1,220)	(1,828)
Ending balance	1,666	(4,898)
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Net Gain on Sale of Securities Available for Sale	359	0
Income Tax Expense	483	690
Total reclassifications, net of tax	(229)	0
Unrealized gains and Losses on available-for-sale securities [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	10,553	11,873
Other comprehensive loss before reclassifications	(991)	(1,573)
Amounts reclassified from AOCI	(229)	0
Net current-period other comprehensive loss	(1,220)	(1,573)
Ending balance	9,333	10,300
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications, net of tax	(229)	0
Unrealized gains and Losses on available-for-sale securities [Member] | Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Amounts reclassified from AOCI	229
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Net Gain on Sale of Securities Available for Sale	359
Income Tax Expense	(130)
Total reclassifications, net of tax	229
Pension and postretirement plan items [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(7,667)	(14,943)
Other comprehensive loss before reclassifications	0	(255)
Amounts reclassified from AOCI	0	0
Net current-period other comprehensive loss	0	(255)
Ending balance	(7,667)	(15,198)
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications, net of tax	$ 0	$ 0