Inventory (Tables)

12 Months Ended

Sep. 30, 2018

Inventory Disclosure [Abstract]

Schedule of Inventory

The components of inventory consisted of the following:

	As of September 30,
(in thousands)	2018		2017
Raw materials	$	11,857	$	15,826
Work in-process	5,402		6,586
Finished goods	5,024		5,413
Inventory balance at end of period	$	22,283	$	27,825
Current portion	$	20,850	$	25,139
Non-Current portion	$	1,433	$	2,686