Note 8 - Leases (Details Textual)	3 Months Ended		6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 15, 2018 ft²	Feb. 01, 2018 ft²	Oct. 17, 2017 ft²
Operating Leases, Rent Expense, Total | $	$ 153,923	$ 19,936	$ 183,135	$ 37,179
Corporate Office, Minnesota [Member]
Lessee, Operating Lease, Term of Contract						3 years
Area of Real Estate Property						5,773
Corporate Office, Minnesota [Member] | Office Space [Member]
Area of Real Estate Property						2,945
Corporate Office, Minnesota [Member] | Manufacturing Facility [Member]
Area of Real Estate Property						2,828
Skyline Medical Europe’s Offices Lease [Member]
Area of Real Estate Property					2,000
Skyline Medical Europe’s Offices Lease [Member] | Office Space [Member]
Area of Real Estate Property					1,250
Skyline Medical Europe’s Offices Lease [Member] | Storage Space [Member]
Area of Real Estate Property					750
Helomics' Offices [Member]
Area of Real Estate Property							17,417
Helomics' Offices [Member] | Office Space [Member]
Area of Real Estate Property							1,000
Helomics' Offices [Member] | Laboratory [Member]
Area of Real Estate Property							16,417