Note 4 - Intangible Assets - Schedule of Intangible Assets (Details) - USD ($)	Sep. 30, 2025	Dec. 31, 2024
Intangible asset, gross	$ 5,892,244	$ 5,706,438
Accumulated amortization	(4,087,975)	(3,753,542)
Finite-Lived Intangible Assets, Net	1,804,269	1,952,896
Patents [Member]
Intangible asset, gross	16,000	16,000
Accumulated amortization	(16,000)	(16,000)
Finite-Lived Intangible Assets, Net	0	0
Trade Names [Member]
Intangible asset, gross	769,249	743,628
Accumulated amortization	(769,249)	(743,628)
Finite-Lived Intangible Assets, Net	0	0
Technology and Software [Member]
Intangible asset, gross	575,027	558,664
Accumulated amortization	(575,027)	(558,664)
Finite-Lived Intangible Assets, Net	0	0
Customer Relationships [Member]
Intangible asset, gross	4,531,968	4,388,146
Accumulated amortization	(2,727,699)	(2,435,250)
Finite-Lived Intangible Assets, Net	$ 1,804,269	$ 1,952,896