Geographical Information (Tables)

12 Months Ended

Sep. 30, 2015

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 and exclude the discontinued operations discussed above.

Revenue by Geographic Region	For the Fiscal Years Ended September 30,
(in thousands)	2015		2014		2013
United States	$	55,736	$	37,284	$	45,228
Asia	16,885		8,652		11,583
Europe	8,249		7,746		3,729
Other	815		1,832		431
Total revenue	$	81,685	$	55,514	$	60,971

Schedule of Long-lived Assets by Geographic Areas

Long-lived assets consist primarily of property, plant, and equipment and intangible assets. Long-lived assets that were disposed of as the result of the Photovoltaics and Digital Products Asset Sales were included in "Assets of discontinued operations" on the Consolidated Balance Sheet as of September 30, 2014, and accordingly, are not included in the following table.

Long-lived Assets	As of		As of
(in thousands)	September 30, 2015		September 30, 2014
United States	$	3,356	$	4,997
International	5,569		5,531
Long-lived assets	$	8,925	$	10,528