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Selected Balance Sheet Data (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Sep. 30, 2022
Accounts receivable, net:    
Accounts receivable $ 54,362 $ 58,967
Less allowance for credit losses 2,173 3,285
Less reserve for future credit returns and pricing adjustments 4,225 5,232
Accounts receivable, net 47,964 50,450
Inventories:    
Raw materials 34,015 39,189
Work in process 100 592
Finished goods 49,490 33,442
Inventories $ 83,605 $ 73,223