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OTHER COMPREHENSIVE INCOME (LOSS) (Amounts allocated to other comprehensive income (loss)) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Other Comprehensive Income (Loss)    
Change in Net Unrealized Gain on Available-for-Sale Securities, Net of Tax Expense (Benefit) $ 6 $ (246)
Net Other Comprehensive Income (Loss) 6 (246)
The components of accumulated other comprehensive loss, net of tax, as of each period end were as follows:    
Net unrealized gain on securities available for sale 579 818
Net unfunded liability for defined benefit pension plan and SERP plan (30,132) (24,593)
Accumulated Other Comprehensive Loss $ (29,553) $ (23,775)