Note 12 - Mitek Monovisc Agreement (Details Textual) - Miltek MONOVISC Agreement [Member] - USD ($)	1 Months Ended	3 Months Ended			12 Months Ended
	Dec. 31, 2011	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2014
Contract Term Years	15 years
Deferred Revenue	$ 2,500,000
Deferred Revenue, Revenue Recognized				$ 2,200,000
Revenue Recognition, Milestone Method, Revenue Recognized		$ 5,000,000	$ 5,000,000	$ 17,500,000	$ 29,652,778