Note 9 - Leases - Other Information Related to Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Operating cash flows from operating leases	$ 278	$ 270
Weighted average remaining lease term (Year)	3 years 4 months 24 days	3 years 10 months 24 days
Weighted average discount rate	3.25%	3.25%