Note 4 - Intangible Assets - Schedule of Intangible Assets (Details) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Intangible asset, gross	$ 6,054,365	$ 6,037,021
Accumulated amortizatio	(3,457,045)	(3,373,710)
Finite-Lived Intangible Assets, Net	2,597,320	2,663,311
Patents [Member]
Intangible asset, gross	16,000	16,000
Accumulated amortizatio	(16,000)	(16,000)
Finite-Lived Intangible Assets, Net	0	0
Trade Names [Member]
Intangible asset, gross	791,603	789,212
Accumulated amortizatio	(791,603)	(789,212)
Finite-Lived Intangible Assets, Net	0	0
Technology and Software [Member]
Intangible asset, gross	589,303	587,776
Accumulated amortizatio	(589,303)	(587,776)
Finite-Lived Intangible Assets, Net	0	0
Customer Relationships [Member]
Intangible asset, gross	4,657,459	4,644,033
Accumulated amortizatio	(2,060,139)	(1,980,722)
Finite-Lived Intangible Assets, Net	$ 2,597,320	$ 2,663,311