Intangible Assets (Detail) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Value	$ 28,902,686
Currency Translation Adjustment	(2,701,704)
Accumulated Amortization	(7,204,096)
Net Book Value	18,996,886	20,334,636
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Value	16,700,000
Currency Translation Adjustment	(1,609,247)
Accumulated Amortization	(3,472,667)
Net Book Value	11,618,086	12,370,042
Useful Life		15 years
Distributor relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Value	4,700,000
Currency Translation Adjustment	(483,620)
Accumulated Amortization	(2,972,514)
Net Book Value	1,243,866	1,733,453
Useful Life		5 years
Patents
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Value	1,000,000
Currency Translation Adjustment	(96,203)
Accumulated Amortization	(197,640)
Net Book Value	706,157	749,166
Useful Life		16 years
Elevess trade name
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Value	1,000,000
Accumulated Amortization	(561,275)
Net Book Value	438,725	501,401
Useful Life		9 years
In-process research & development
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Value	5,502,686
Currency Translation Adjustment	(512,634)
Net Book Value	$ 4,990,052	$ 4,980,574