Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Inventory Valuation Reserves, Ending Balance		$ 52,900	$ 39,700
Net Income (Loss) Attributable to Parent, Total		(7,532,533)	(4,255,033)
Retained Earnings (Accumulated Deficit), Ending Balance		(25,120,233)	(17,587,700)
Net Cash Provided by (Used in) Operating Activities, Total		(6,589,487)	(3,188,440)
Proceeds from Issuance or Sale of Equity, Net of Issuance Costs		7,120,000
Cash and Cash Equivalents, at Carrying Value, Ending Balance		2,783,719	$ 2,217,412	$ 1,270,973
Working Capital		$ 817,000
Fair Value, Recurring [Member]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	$ 0
Warrants To Purchase Common Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		63,321,294	32,192,294
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