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Goodwill and Intangible Assets (Details 1) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Goodwill and Intangible Assets (Textual) [Abstract]        
Aggregate amortization expense on intangible assets $ 445,000 $ 457,000 $ 893,028 $ 917,366
Estimated aggregate amortization expense for remainder of 2013 877,000   877,000  
Estimated aggregate amortization expense for 2014 943,000   943,000  
Estimated aggregate amortization expense for 2015 870,000   870,000  
Estimated aggregate amortization expense for 2016 816,000   816,000  
Estimated aggregate amortization expense for 2017 775,000   775,000  
Estimated aggregate amortization expense for 2018 $ 773,000   $ 773,000