Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Narrative) (Details)

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Fair Value Measurements (Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of accrued consideration $ 770,041 $ 1,002,623
Change in fair value of acquisition-related contingent consideration (85,501)  
Payments [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Change in fair value of acquisition-related contingent consideration 370,096  
Foreign Currency Gain (Loss) [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Change in fair value of acquisition-related contingent consideration 52,013  
Operating Income (Loss) [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Change in fair value of acquisition-related contingent consideration 85,501  
Level 3 [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of accrued consideration 770,041 1,002,623
Accrued Consideration [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of accrued consideration 770,041 1,002,623
Accrued Consideration [Member] | Level 3 [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of accrued consideration $ 770,041 $ 1,002,623