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Intangible Assets (Detail) (USD $)
 6 Months Ended 12 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Finite Lived and Indefinite Lived Intangible Assets [Line Items]    
Gross Value $ 30,098,000  
Currency Translation Adjustment (3,427,351)  
Accumulated Amortization (5,164,175)  
Net Book Value 21,506,474 23,148,563
In-process research & development
    
Finite Lived and Indefinite Lived Intangible Assets [Line Items]    
Gross Value 6,698,000  
Currency Translation Adjustment (820,741)  
Net Book Value 5,877,259 5,955,066
Developed technology
    
Finite Lived and Indefinite Lived Intangible Assets [Line Items]    
Gross Value 16,700,000  
Currency Translation Adjustment (1,974,317)  
Accumulated Amortization (2,462,946)  
Net Book Value 12,262,737 13,228,351
Useful Life   15 years
Distributor relationships
    
Finite Lived and Indefinite Lived Intangible Assets [Line Items]    
Gross Value 4,700,000  
Currency Translation Adjustment (513,855)  
Accumulated Amortization (2,124,103)  
Net Book Value 2,062,042 2,547,842
Useful Life   5 years
Patents
    
Finite Lived and Indefinite Lived Intangible Assets [Line Items]    
Gross Value 1,000,000  
Currency Translation Adjustment (118,438)  
Accumulated Amortization (141,202)  
Net Book Value 740,360 790,555
Useful Life   16 years
Elevess trade name
    
Finite Lived and Indefinite Lived Intangible Assets [Line Items]    
Gross Value 1,000,000  
Accumulated Amortization (435,924)  
Net Book Value $ 564,076 $ 626,749
Useful Life   9 years