Note 9 - Segments - Segments (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Revenue	$ 294,943	$ 255,241
Segment Loss	(4,529,317)	$ (3,293,184)
Assets	25,048,996		$ 22,375,510
Corporate, Non-Segment [Member]
Revenue
Segment Loss	(2,707,008)
Assets	2,547,396		130,411
Domestic [Member] | Operating Segments [Member]
Revenue	279,813
Segment Loss	(340,779)
Assets	823,804		670,841
International [Member] | Operating Segments [Member]
Revenue
Segment Loss	(69,065)
Assets	287,606		298,952
Helomics Segment [Member] | Operating Segments [Member]
Revenue	15,130
Segment Loss	(1,412,465)
Assets	$ 21,390,191		$ 21,275,306