Summary of Significant Accounting Policies - Schedule of Property, Plant and Equipment by Major Asset Class (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 114,839	$ 110,976
Less: Accumulated depreciation	78,552	71,704
Property, plant and equipment, net	36,287	39,272
Land
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	949	913
Buildings
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	17,016	16,553
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 96,874	$ 93,510