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ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance January 1, 2013 $ (5,702)  
Other comprehensive income before reclassification (3)  
Amounts reclassified from accumulated other comprehensive income 169  
TOTAL OTHER COMPREHENSIVE INCOME 166 44
Balance March 31, 2013 (5,536)  
Unrealized loss on available-for-sale securities [Member]
    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance January 1, 2013 (18)  
Other comprehensive income before reclassification (3)  
Amounts reclassified from accumulated other comprehensive income 0  
TOTAL OTHER COMPREHENSIVE INCOME (3)  
Balance March 31, 2013 (21)  
Net unrealized loss on retirement plan [Member]
    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance January 1, 2013 (5,684)  
Other comprehensive income before reclassification 0  
Amounts reclassified from accumulated other comprehensive income 169  
TOTAL OTHER COMPREHENSIVE INCOME 169  
Balance March 31, 2013 (5,515)  
Net unrealized loss on retirement plan [Member] | Reclassification out of AOCI [Member]
    
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Net of Tax [Abstract]    
Amortization of prior service cost 146  
Amortization of actuarial loss 23  
Total $ 169