Annual report pursuant to Section 13 and 15(d)

Supplementary Financial Information - Summary of Activity in Allowance for Doubtful Accounts (Details)

v3.22.2.2
Supplementary Financial Information - Summary of Activity in Allowance for Doubtful Accounts (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Allowance for Doubtful Accounts Receivable [Roll Forward]      
Balance at beginning of year $ 188 $ 159 $ 172
Provision (34) 44 86
Write offs (6) (2) (26)
Adjustment (46) (13) (73)
Balance at end of year $ 114 $ 188 $ 159