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Intangible Assets (Details1) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Estimated amortization expense    
Remainder of 2013 $ 112  
2014 223  
2015 223  
2016 223  
2017 223  
2018 223  
Thereafter 1,462  
Total $ 2,689 $ 2,800