Note 5 - Intangible Assets - Components of Intangible Assets (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Accumulated Amortization	$ (568,300)	$ (414,611)
Net Carrying Amount	3,141,597
Total, Gross Carrying Costs	4,107,897	4,064,023
Total, Net Carrying Amount	3,539,597	3,649,412
Trade Names [Member]
Tradename	398,000	398,000
Patents and Trademarks [Member]
Gross Carrying Costs	382,897	339,023
Accumulated Amortization	(202,758)	(195,286)
Net Carrying Amount	180,139	143,737
Developed Technology Rights [Member]
Gross Carrying Costs	2,882,000	2,882,000
Accumulated Amortization	(180,125)	(108,075)
Net Carrying Amount	2,701,875	2,773,925
Customer Relationships [Member]
Gross Carrying Costs	445,000	445,000
Accumulated Amortization	(185,417)	(111,250)
Net Carrying Amount	$ 259,583	$ 333,750