Valuation and Qualifying Accounts (Tables)

12 Months Ended

Sep. 30, 2022

Valuation and Qualifying Accounts

Schedule of changes in valuation and qualifying accounts

	Balance at	Charges		Balance at
	Beginning	(credits) to		End of
	of Period	Expense	Deductions(1)	Period
Allowance for credit losses:
September 30, 2020	441	139	(35)	545
September 30, 2021	545	74	(66)	553
September 30, 2022	553	171	(296)	428

(1) Uncollectible accounts written off net of recoveries.