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INCOME TAXES (Schedule of Change in Net Deferred Tax Assets and Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
INCOME TAXES [Abstract]      
Unrealized gains recognized in comprehensive income $ 162 $ (1,231)  
Pension obligation of the defined benefit plan not yet recognized in income 725 612 352
Deferred provision for income taxes (2,101) (2,758) 126
Net (decrease) $ (1,214) $ (3,377)