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Revenue by Product Group (Detail) (USD $) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Revenue from External Customer [Line Items] |  |  |  |
Product revenue | $ 20,067,407 | $ 18,882,277 | $ 34,561,896 | $ 32,495,605
Orthobiologics |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Product revenue | 16,506,226 | 10,903,364 | 27,789,773 | 21,020,209
Dermal |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Product revenue | 557,059 | 155,735 | 798,643 | 657,051
Surgical |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Product revenue | 1,830,022 | 1,464,505 | 2,818,886 | 2,448,133
Ophthalmic |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Product revenue | 464,340 | 5,299,732 | 1,392,798 | 6,623,726
Veterinary |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Product revenue | $ 709,760 | $ 1,058,941 | $ 1,761,796 | $ 1,746,486

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- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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