Property, Plant, and Equipment, net (Tables)

9 Months Ended

Jun. 30, 2017

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			As of
(in thousands)	June 30, 2017			September 30, 2016
Equipment	$	31,375		$	28,247
Furniture and fixtures	1,109			1,109
Computer hardware and software	3,046			2,860
Leasehold improvements	2,006			1,896
Construction in progress	4,216			1,779
Property, plant, and equipment, gross	41,752			35,891
Accumulated depreciation	(26,068		)	(23,678		)
Property, plant, and equipment, net	$	15,684		$	12,213