Segment, Customer and Geographical Reporting (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting [Line Items]
Segment Reporting Information Net Assets		$ 0.3
Sales Revenue, Segment [Member]
Segment Reporting [Line Items]
Concentration Risk, Percentage	76.00%	74.00%
Customer Five [Member] | Sales Revenue, Segment [Member]
Segment Reporting [Line Items]
Concentration Risk, Percentage	10.00%
Optics [Member] | Maximum [Member]
Segment Reporting [Line Items]
Concentration Risk, Percentage		21.00%
Optics [Member] | Minimum [Member]
Segment Reporting [Line Items]
Concentration Risk, Percentage		9.00%
Optics [Member] | Customer One [Member]
Segment Reporting [Line Items]
Concentration Risk, Percentage	10.00%