Basis of Presentation - Other Disclosures (Details) In Millions, unless otherwise specified	9 Months Ended
	Jun. 30, 2012
Segment Reporting:
Number of reporting segments (in ones)	2	[1]
Reverse Stock Split:
Reverse stock split arrangement (in ones)	four-to-one
Common stock, shares authorized, pre-reverse stock split	200
Common stock, shares authorized, post-reverse stock split	50

[1] reporting segments: Fiber Optics and Photovoltaics