Property, Plant, and Equipment, net (Tables)

6 Months Ended

Mar. 31, 2022

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

The components of property, plant, and equipment, net consisted of the following:

	As of
(in thousands)	March 31, 2022		September 30, 2021
Equipment	$	38,944	$	37,985
Furniture and fixtures	1,125		1,125
Computer hardware and software	3,576		3,575
Leasehold improvements	6,701		6,663
Construction in progress	11,377		9,247
Property, plant, and equipment, gross	$	61,723	$	58,595
Accumulated depreciation	(37,886)		(36,051)
Property, plant, and equipment, net	$	23,837	$	22,544