Selected Balance Sheet Data (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022
Accounts receivable, net:
Accounts receivable	$ 58,037	$ 58,967
Less allowance for credit losses	3,350	3,285
Less reserve for future credit returns and pricing adjustments	5,019	5,232
Accounts receivable, net	49,668	50,450
Inventories:
Raw materials	38,887	39,189
Work in process	2	592
Finished goods	42,104	33,442
Inventories	$ 80,993	$ 73,223