Note 12 - Segment and Geographic Information (Details) - Product Revenue by Product Group (USD $)	1 Months Ended		3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Product Revenue	$ 14,351,405	$ 14,494,489	$ 14,351,405	$ 14,494,489
Orthobiologics [Member]
Segment Reporting Information [Line Items]
Product Revenue	11,572,150	11,283,547
Dermal [Member]
Segment Reporting Information [Line Items]
Product Revenue	188,651	241,584
Surgical [Member]
Segment Reporting Information [Line Items]
Product Revenue	1,752,020	988,864
Ophthalmic [Member]
Segment Reporting Information [Line Items]
Product Revenue	208,584	928,458
Veterinary [Member]
Segment Reporting Information [Line Items]
Product Revenue	$ 630,000	$ 1,052,036