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Goodwill and Intangible Assets (Details 1) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Schedule of future amortization expenses    
2013 (remaining six months) $ 632  
2014 1,047  
2015 974  
2016 974  
2017 923  
Thereafter 4,229  
Net Carrying Amount $ 8,779 $ 7,906