Goodwill and Other Intangible Assets, Net - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Sep. 30, 2022
Intangible Assets
Amortization of customer relationships, patents, non-competes and other intangibles	$ 263	$ 225	$ 479	$ 547
Total intangible assets, Gross Amount	6,975		6,975		$ 7,000
Finite-lived intangible assets, Accumulated Amortization	(1,225)		(1,225)		(2,091)
Carrying Amount	5,750		5,750		4,909
Customer relationships
Intangible Assets
Finite-Lived Intangible Assets, Gross	2,100		2,100		2,100
Finite-lived intangible assets, Accumulated Amortization	(1,225)		(1,225)		(1,128)
Finite-lived intangible assets, Carrying Amount	875		875		972
Other Intangible Assets
Intangible Assets
Finite-Lived Intangible Assets, Gross	1,075		1,075		1,100
Finite-lived intangible assets, Accumulated Amortization					(963)
Finite-lived intangible assets, Carrying Amount	1,075		1,075		137
Trademarks
Intangible Assets
Indefinite-lived intangible assets	$ 3,800		$ 3,800		$ 3,800