Segment, Customer and Geographical Reporting (Details Textual)	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Entity-Wide Revenue, Major Customer, Percentage	68.00%	78.00%
Concentration Risk, Percentage	100.00%	100.00%
Optics [Member] | Maximum [Member]
Entity-Wide Revenue, Major Customer, Percentage	10.00%	10.00%
Customer Concentration Risk [Member]
Concentration Risk, Percentage	40.00%	36.00%
Sales Revenue, Segment [Member]
Concentration Risk, Percentage	100.00%