Note 6 - Property and Equipment (Details) - Property, Plant, and Equipment Useful Life - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	$ 2,913,355	$ 2,804,014
Less accumulated depreciation and amortization	(2,058,483)	(1,633,517)
Total	854,872	1,170,497
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	2,398,613	2,298,516
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	244,923	235,679
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	$ 269,819	$ 269,819