Note 1 - Significant Accounting Policies (Tables)

12 Months Ended

Sep. 30, 2023

Notes Tables

Property, Plant and Equipment, Estimated Useful Life [Table Text Block]

	Years
Rental equipment		2 - 5
Property, plant and equipment:
Machinery and equipment		3 - 15
Buildings and building improvements		10 - 50
Other		5 - 10

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	Years
Developed technology		18
Trade names		5
Customer relationships		4
Non-compete agreements		4

Schedule of Product Warranty Liability [Table Text Block]

Balance at October 1, 2021	$	379
Accruals for warranties issued during the year		1,431
Settlements made (in cash or in kind) during the year		(1,286	)
Balance at September 30, 2022		524
Accruals for warranties issued during the year		1,655
Settlements made (in cash or in kind) during the year		(1,521	)
Balance at September 30, 2023	$	658