Note 7 - Loans Payable (Details Textual) - USD ($)	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Debt Instrument, Debt Default, Amount	$ 9,675,000		$ 9,675,000
Equipment Pledged as Collateral	$ 11,000		11,000
Stock Issued During Period, Value, New Issues			$ 87,668
Individual Lenders [Member]
Stock Issued During Period, Shares, New Issues	18,000	0	60,400	0
Stock Issued During Period, Value, New Issues	$ 11,160		$ 37,448

Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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