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Interim Consolidated Statements of Operations (Unaudited) (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Income Statement [Abstract]        
Tax effect on operating income $ 21 $ 5 $ 28 $ 48