Note 10 - Revenue From Contracts with Customers (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Sep. 30, 2024
Accounts Receivable, after Allowance for Credit Loss, Current	$ 155,038		$ 156,273
Contract with Customer, Asset, after Allowance for Credit Loss, Current	34,300		28,900
Contract with Customer, Asset, Revenue Recognized	9,200	$ 9,100
Contract with Customer, Liability	41,800		$ 30,500
Contract with Customer, Liability, Revenue Recognized	14,400	$ 21,600
Revenue, Remaining Performance Obligation, Amount	$ 84,556