Note 7 - Loans Payable (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Debt Instrument, Debt Default, Amount	$ 9,675,000		$ 9,675,000
Equipment Pledged as Collateral	$ 9,000		9,000
Stock Issued During Period, Value, New Issues			$ 90,900	$ 59,768
Individual Lenders [Member]
Stock Issued During Period, Shares, New Issues	18,000	26,000	36,000	42,400
Stock Issued During Period, Value, New Issues	$ 18,180	$ 16,120	$ 36,360	$ 26,288