Note 16 - Stock Based Compensation (Details) - Stock Option Exercises - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stock Option Exercises [Abstract]
Number of options exercised (in Shares)	21,500	500
Cash received	$ 64,624	$ 975	$ 0
Intrinsic value	$ 26,532	$ 1,010