Note 14 - Subsequent Events (Details Textual) - USD ($)	1 Months Ended	6 Months Ended	12 Months Ended
	Aug. 04, 2016	Jun. 30, 2016	Dec. 31, 2015
Subsequent Event [Member]
Repayments of Lines of Credit	$ 200,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	3,038
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		1,012,500	292,500