Geographical Information (Schedule of Revenue by Geographic Region) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Revenue	$ 21,194	$ 13,596	$ 58,667	$ 41,212
Operating Segments | United States
Segment Reporting Information [Line Items]
Revenue	15,515	8,733	41,928	27,326
Operating Segments | Asia
Segment Reporting Information [Line Items]
Revenue	3,746	1,876	10,344	6,855
Operating Segments | Europe
Segment Reporting Information [Line Items]
Revenue	1,685	1,911	5,712	5,422
Operating Segments | Other
Segment Reporting Information [Line Items]
Revenue	$ 248	$ 1,076	$ 683	$ 1,609