Segment Data and Related Information (Tables)

12 Months Ended

Sep. 30, 2014

Segment Reporting [Abstract]

Schedule of segment revenue

The following tables set forth revenue attributable to each of our reporting segments and by geographic region with revenue assigned to geographic regions based on our customers’ billing addresses.

Segment Revenue	For the Fiscal Years Ended September 30,
(in thousands)	2014		2013		2012
Fiber Optics revenue	$	101,552	$	96,977	$	96,153
Photovoltaics revenue	73,226		71,170		67,628
Total revenue	$	174,778	$	168,147	$	163,781

Schedule of revenue by geographic region

Revenue by Geographic Region	For the Fiscal Years Ended September 30,
(in thousands)	2014		2013		2012
United States	$	111,428	$	107,341	$	111,962
Asia	40,244		44,373		27,519
Europe	21,196		15,318		15,032
Other	1,910		1,115		9,268
Total revenue	$	174,778	$	168,147	$	163,781

Statement of operations data

The following table sets forth operating (loss) income attributable to each of our reporting segments.

Operating (Loss) Income	For the Fiscal Years Ended September 30,
(in thousands)	2014			2013			2012
Fiber Optics operating loss	$	(25,400	)	$	(8,382	)	$	(26,684	)
Photovoltaics operating income (loss)	6,292			8,602			(8,941		)
Total operating (loss) income	$	(19,108	)	$	220		$	(35,625	)

Schedule of depreciation, amortization, and accretion expense

The following tables set forth our significant non-cash expenses attributable to each of our reporting segments.

Depreciation, Amortization, and Accretion Expense	For the Fiscal Years Ended September 30,
(in thousands)	2014		2013		2012
Fiber Optics segment	$	5,986	$	5,737	$	5,246
Photovoltaics segment	2,532		2,951		4,174
Total depreciation, amortization, and accretion expense	$	8,518	$	8,688	$	9,420

Schedule of stock-based compensation expense

Stock-based Compensation Expense	For the Fiscal Years Ended September 30,
(in thousands)	2014		2013		2012
Fiber Optics segment	$	2,792	$	2,668	$	4,678
Photovoltaics segment	1,647		1,541		3,078
Total stock-based compensation expense	$	4,439	$	4,209	$	7,756

Schedule of long-lived assets

The following table sets forth long-lived assets for each of our reporting segments and our unallocated Corporate division.

Long-lived Assets	As of September 30, 2014		As of September 30, 2013
(in thousands)
Fiber Optics segment	$	18,976	$	23,804
Photovoltaics segment	39,137		40,048
Unallocated Corporate division	8,400		8,435
Long-lived assets	$	66,513	$	72,287