Note 1 - DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Estimated Useful Lives of Property and Equipment (Details)	12 Months Ended
	Dec. 31, 2021
Computer Equipment [Member]
Property, plant and equipment, useful life (Year)	3 years
Software and Software Development Costs [Member]
Property, plant and equipment, useful life (Year)	3 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, plant and equipment, useful life (Year)	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, plant and equipment, useful life (Year)	10 years
Laboratory and Test Equipment [Member] | Minimum [Member]
Property, plant and equipment, useful life (Year)	3 years
Laboratory and Test Equipment [Member] | Maximum [Member]
Property, plant and equipment, useful life (Year)	10 years