Note 13 - Intangible Assets (Details Textual) - USD ($)	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Finite-Lived Intangible Assets, Net	$ 13,958,773	$ 13,959,571
Amortization of Intangible Assets	2,025,889	2,247,513
Cost of Sales [Member]
Amortization of Intangible Assets	1,144,924	1,366,019
Operating Expense [Member]
Amortization of Intangible Assets	880,965	$ 881,495
Patents [Member]
Finite-Lived Intangible Assets, Net	$ 0
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	3 years
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	20 years