Note 8 - Loans Payable - Related Parties (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Interest Expense, Related Party	$ 106,708	$ 83,323	$ 316,286	$ 246,747
Stock Issued During Period, Value, New Issues			$ 87,668
Related Parties Lenders [Member]
Stock Issued During Period, Shares, New Issues	27,000	0	81,000	0
Stock Issued During Period, Value, New Issues	$ 16,740		$ 50,220
Loans Payable to Related Party [Member]
Interest Payable, Related Party	330,905		330,905		$ 248,100
Interest Expense, Related Party	$ 44,103	$ 21,359	$ 133,025	$ 59,554