Note 5 - Long-lived Assets - Goodwill and Intangible Assets (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Trademarks (definite-lived)	$ 100,000
IPR&D (indefinite-lived)	2,200,000
Goodwill	2,061,022
	4,361,022
Less: Accumulated amortization trademarks	(5,952)
Less: Impairment – trademarks and IPR&D	(2,294,048)
Total goodwill and intangible assets, net	$ 2,061,022