Note 15 - Restructuring Charges (Details) (USD $)	3 Months Ended	6 Months Ended	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013
Note 15 - Restructuring Charges (Details) [Line Items]
Restructuring Costs and Asset Impairment Charges		$ 2,500,000
Restructuring Charges	(196,084)		(442,869)
Non-Cash Termination And Impairment Of IPR&D [Member]
Note 15 - Restructuring Charges (Details) [Line Items]
Restructuring Costs and Asset Impairment Charges		1,200,000
Noncash disposal of property and equipment [Member]
Note 15 - Restructuring Charges (Details) [Line Items]
Restructuring Costs and Asset Impairment Charges		300,000
Disposal of inventory [Member]
Note 15 - Restructuring Charges (Details) [Line Items]
Restructuring Costs and Asset Impairment Charges		100,000
Employee termination costs [Member]
Note 15 - Restructuring Charges (Details) [Line Items]
Restructuring Costs and Asset Impairment Charges		$ 900,000