Property, Plant, and Equipment, net - Schedule of Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Sep. 30, 2021
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 64,043	$ 58,595
Accumulated depreciation	(37,964)	(36,051)
Property, plant, and equipment, net	26,079	22,544
Equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	42,932	37,985
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	1,380	1,125
Computer hardware and software
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	3,589	3,575
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	7,186	6,663
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 8,956	$ 9,247

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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