Property, Plant, and Equipment, net (Tables)

6 Months Ended

Mar. 31, 2021

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, 2021		September 30, 2020
Equipment	$	35,435	$	35,218
Furniture and fixtures	1,125		1,125
Computer hardware and software	3,584		3,473
Leasehold improvements	6,589		3,169
Construction in progress	6,665		10,301
Property, plant, and equipment, gross	$	53,398	$	53,286
Accumulated depreciation	(34,218)		(32,234)
Property, plant, and equipment, net	$	19,180	$	21,052