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Goodwill and Other Intangible Assets Intangible Amortization Expense (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Intangible Asset Amortization Expense By Category [Line Items]    
Amortization of Intangible Assets $ 605,200 $ 577,300
Cost of Sales [Member]
    
Intangible Asset Amortization Expense By Category [Line Items]    
Amortization of Intangible Assets 390,000 370,900
General and Administrative Expense [Member]
    
Intangible Asset Amortization Expense By Category [Line Items]    
Amortization of Intangible Assets 180,000 171,200
Research and Development Expense [Member]
    
Intangible Asset Amortization Expense By Category [Line Items]    
Amortization of Intangible Assets $ 35,200 $ 35,200