Schedule of Operating Income (Loss) by Segment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Segment Reporting Information [Line Items]
Operating Income (Loss)	$ (8,758)	$ (11,201)	$ (29,332)	$ (18,170)
Fiber Optics
Segment Reporting Information [Line Items]
Operating Income (Loss)	(3,840)	(7,554)	(22,284)	(17,250)
Photovoltaics
Segment Reporting Information [Line Items]
Operating Income (Loss)	$ (4,918)	$ (3,647)	$ (7,048)	$ (920)