Segment Data and Related Information (Tables)

6 Months Ended

Mar. 31, 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 address.

Segment Revenue	For the three months ended March 31,				For the six months ended March 31,
(in thousands)	2014		2013		2014		2013
Fiber Optics revenue	$	23,620	$	23,130	$	46,912	$	52,808
Photovoltaics revenue	18,627		19,147		39,546		38,775
Total revenue	$	42,247	$	42,277	$	86,458	$	91,583

Schedule of revenue by geographic region

Revenue by Geographic Region	For the three months ended March 31,				For the six months ended March 31,
(in thousands)	2014		2013		2014		2013
United States	$	27,016	$	28,324	$	55,113	$	62,991
Asia	11,093		8,825		21,380		17,725
Europe	3,986		4,892		9,420		10,105
Other	152		236		545		762
Total revenue	$	42,247	$	42,277	$	86,458	$	91,583

Statement of operations data

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

Operating (Loss) Income	For the three months ended March 31,					For the six months ended March 31,
(in thousands)	2014			2013		2014			2013
Fiber Optics operating (loss) income	$	(7,320	)	$	7,892	$	(13,891	)	$	7,497
Photovoltaics operating income	2,071			4,279		6,402			7,520
Total operating (loss) income	$	(5,249	)	$	12,171	$	(7,489	)	$	15,017

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 three months ended March 31,				For the six months ended March 31,
(in thousands)	2014		2013		2014		2013
Fiber Optics segment	$	1,456	$	1,384	$	2,940	$	2,666
Photovoltaics segment	639		660		1,223		1,396
Total depreciation, amortization, and accretion expense	$	2,095	$	2,044	$	4,163	$	4,062

Schedule of stock-based compensation expense

Stock-based Compensation Expense	For the three months ended March 31,				For the six months ended March 31,
(in thousands)	2014		2013		2014		2013
Fiber Optics segment	$	674	$	702	$	1,429	$	1,428
Photovoltaics segment	430		349		810		705
Total stock-based compensation expense	$	1,104	$	1,051	$	2,239	$	2,133

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		As of
(in thousands)	March 31, 2014		September 30, 2013
Fiber Optics segment	$	21,490	$	23,804
Photovoltaics segment	39,408		40,048
Unallocated Corporate division	8,349		8,435
Long-lived assets	$	69,247	$	72,287