Note 3 - Intangible Assets - Schedule of Intangible Assets (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Intangible asset, gross	$ 6,346,764	$ 6,450,208
Accumulated amortizatio	(3,383,653)	(3,275,010)
Finite-Lived Intangible Assets, Net, Ending Balance	2,963,111	3,175,198
Patents [Member]
Intangible asset, gross	16,000	16,000
Accumulated amortizatio	(16,000)	(16,000)
Finite-Lived Intangible Assets, Net, Ending Balance	0	0
Trade Names [Member]
Intangible asset, gross	831,922	846,186
Accumulated amortizatio	(831,922)	(843,240)
Finite-Lived Intangible Assets, Net, Ending Balance	0	2,946
Technology and Software [Member]
Intangible asset, gross	615,053	624,162
Accumulated amortizatio	(615,053)	(624,162)
Finite-Lived Intangible Assets, Net, Ending Balance	0	0
Customer Relationships [Member]
Intangible asset, gross	4,883,789	4,963,860
Accumulated amortizatio	(1,920,678)	(1,791,608)
Finite-Lived Intangible Assets, Net, Ending Balance	$ 2,963,111	$ 3,172,252