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Product Revenue by Product Group (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenue from External Customer [Line Items]
Product revenue	$ 18,882,277	$ 15,414,681	$ 32,495,605	$ 26,474,840
Orthobiologics
Revenue from External Customer [Line Items]
Product revenue	10,903,364	9,763,597	21,020,209	17,799,893
Dermal
Revenue from External Customer [Line Items]
Product revenue	155,735	799,605	657,051	1,388,759
Ophthalmic
Revenue from External Customer [Line Items]
Product revenue	5,299,732	2,584,820	6,623,726	3,482,629
Surgical
Revenue from External Customer [Line Items]
Product revenue	1,464,505	1,566,026	2,448,133	2,679,755
Veterinary
Revenue from External Customer [Line Items]
Product revenue	$ 1,058,941	$ 700,633	$ 1,746,486	$ 1,123,804

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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=6880815&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

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