Note 3 - Property and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Property, Plant, and Equipment Gross	$ 4,879,106	$ 4,710,855
Less: Accumulated depreciation	3,107,369	2,877,600
Total Property and Equipment, Net	1,771,737	1,833,255
Office Equipment [Member]
Property, Plant, and Equipment Gross	485,837	463,292
Leasehold Improvements [Member]
Property, Plant, and Equipment Gross	669,067	535,527
Laboratory Equipment [Member]
Property, Plant, and Equipment Gross	3,559,362	3,559,362
Manufacturing Tooling [Member]
Property, Plant, and Equipment Gross	133,285	121,120
Demo Equipment [Member]
Property, Plant, and Equipment Gross	$ 31,555	$ 31,554