Note 13 - Equity Instruments (Details Textual) - USD ($)	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Stock Issued During Period, Value, Issued for Services	$ 10,500
Common Stock [Member]
Stock Issued During Period, Value, Issued for Services	$ 17
Stock Issued During Period, Shares, Issued for Services	16,406
Director [Member] \| Common Stock [Member]
Stock Issued During Period, Value, Issued for Services	$ 10,500	$ 34,820
Stock Issued During Period, Shares, Issued for Services	16,406	29,069
Employees [Member] \| Common Stock [Member]
Stock Issued During Period, Value, Issued for Services	$ 369,342
Stock Issued During Period, Shares, Issued for Services	710,353