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Intangible Assets (Detail) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Value | $ 30,098,000 |
Currency Translation Adjustment | (2,398,362) |
Impairments and Other Adjustments | (1,195,314) |
Accumulated Amortization | (6,169,688) |
Net Book Value | 20,334,636 | 23,148,563
Developed technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Value | 16,700,000 |
Currency Translation Adjustment | (1,369,787) |
Accumulated Amortization | (2,960,171) |
Net Book Value | 12,370,042 | 13,228,351
Useful Life |  | 15 years
Distributor relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Value | 4,700,000 |
Currency Translation Adjustment | (424,639) |
Accumulated Amortization | (2,541,908) |
Net Book Value | 1,733,453 | 2,547,842
Useful Life |  | 5 years
Patents |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Value | 1,000,000 |
Currency Translation Adjustment | (81,824) |
Accumulated Amortization | (169,010) |
Net Book Value | 749,166 | 790,555
Useful Life |  | 16 years
Elevess trade name |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Value | 1,000,000 |
Accumulated Amortization | (498,599) |
Net Book Value | 501,401 | 626,749
Useful Life |  | 9 years
In-process research & development |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Value | 6,698,000 |
Currency Translation Adjustment | (522,112) |
Impairments and Other Adjustments | (1,195,314) |
Net Book Value | $ 4,980,574 | $ 5,955,066

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