Note 12 - Leases (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Operating Lease, Weighted Average Remaining Lease Term	4 years 3 months 18 days		4 years 3 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent	4.15%		4.15%
Operating Lease, Expense	$ 246	$ 245	$ 491	$ 503
Short-Term Lease, Cost	$ 7	$ 4	$ 12	$ 4