Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)		1 Months Ended		3 Months Ended			9 Months Ended		12 Months Ended
	Feb. 23, 2017	Apr. 30, 2018	Mar. 31, 2018	Sep. 30, 2018	Mar. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Inventory Valuation Reserves, Ending Balance				$ 27,500			$ 27,500		$ 27,500
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount				30,440,478		30,440,478	15,085,787	15,085,787
Net Income (Loss) Attributable to Parent, Total				$ (787,301)		$ (633,749)	$ (2,889,474)	$ (2,448,993)
Retained Earnings (Accumulated Deficit), Ending Balance				(16,222,141)			(16,222,141)		(13,332,667)
Net Cash Provided by (Used in) Operating Activities, Total							(2,133,780)	(2,076,426)	(3,062,000)
Proceeds from Issuance or Sale of Equity, Net of Issuance Costs									3,341,000
Cash and Cash Equivalents, at Carrying Value, Ending Balance				1,122,340		$ 1,342,642	1,122,340	1,342,642	1,270,973	$ 960,197
Working Capital							56,000		953,000
Proceeds from Issuance of Private Placement	$ 2,000,000	$ 1,960,000	$ 74,983		$ 74,983			$ 585,000
Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure				0			0		0
Financial and Nonfinancial Liabilities, Fair Value Disclosure				$ 0			$ 0		$ 0
Computers and Vehicles [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life							3 years
Computers and Vehicles [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life							5 years
Machinery and Furniture [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life							7 years
Machinery and Furniture [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life							10 years