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Product Warranty Obligation (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
Standard Product Warranty Accrual [Roll Forward]      
Beginning balance $ 886 $ 707 $ 942
Warranties issued 355 537 244
Settlements made (469) (358) (479)
Ending balance $ 772 $ 886 $ 707