Note 8 - Leases (Details Textual)	3 Months Ended
	Mar. 31, 2023 USD ($) ft² a	Mar. 31, 2022 USD ($)	Jan. 04, 2023 USD ($) ft² a	Dec. 31, 2022 USD ($)
Operating Lease, Right-of-Use Asset | $	$ 3,062,598		$ 2,922,365	$ 211,893
Operating Lease, Expense | $	214,015	$ 179,788
Operating Lease, Liability | $	$ 3,024,523
Corporate Office, Minnesota [Member]
Area of Real Estate Property (Square Foot)	5,773
Corporate Office, Minnesota, Used for Office Space [Member]
Area of Real Estate Property (Square Foot)	2,945
Corporate Office, Minnesota, Used for Manufacturing [Member]
Area of Real Estate Property (Square Foot)	2,828
Helomics' Offices [Member]
Area of Real Estate Property (Square Foot) | a			20,835
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract (Year)			5 years
Helomics Offices, Lease Area for Office Space [Member]
Area of Real Estate Property (Square Foot) | a			4,418
Helomics Offices, Lease Area for Laboratory [Member]
Area of Real Estate Property (Square Foot)			16,417
Soluble Biodtech Offices in Birmingham, Alabama [Member]
Area of Real Estate Property (Square Foot) | a	5,274