Geographical Information (Tables)

6 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule of Revenue by Geographic Region

The following tables set forth revenue by geographic region with revenue assigned to geographic regions based on our customers’ billing address.

Revenue by Geographic Region	For the three months ended March 31,				For the six months ended March 31,
(in thousands)	2018		2017		2018		2017
United States	$	14,940	$	25,930	$	35,019	$	50,684
Asia	2,146		4,772		4,803		8,491
Europe	1,505		1,695		2,732		3,325
Other	32		194		105		267
Total revenue	$	18,623	$	32,591	$	42,659	$	62,767