Note 2 - Summary of Significant Accounting Policies and Practices (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life	10 years
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life	30 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life	3 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life	7 years
Goodwill and Intangible Asset Impairment	$ 0	$ 0	$ 0
Freight Costs	$ 1,100,000	$ 900,000	$ 800,000