Goodwill and Other Intangible Assets, Net - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022	Sep. 30, 2022
Intangible Assets
Amortization of customer relationships, patents, non-competes and other intangibles	$ 90	$ 118	$ 216	$ 322
Total intangible assets, Gross Amount	6,248		6,248		$ 7,000
Finite-lived intangible assets, Accumulated Amortization	(1,310)		(1,310)		(2,091)
Carrying Amount	4,938		4,938		4,909
Customer relationships
Intangible Assets
Finite-Lived Intangible Assets, Gross	2,100		2,100		2,100
Finite-lived intangible assets, Accumulated Amortization	(1,193)		(1,193)		(1,128)
Finite-lived intangible assets, Carrying Amount	907		907		972
Other Intangible Assets
Intangible Assets
Finite-Lived Intangible Assets, Gross	348		348		1,100
Finite-lived intangible assets, Accumulated Amortization	(117)		(117)		(963)
Finite-lived intangible assets, Carrying Amount	231		231		137
Trademarks
Intangible Assets
Indefinite-lived intangible assets	$ 3,800		$ 3,800		$ 3,800