Geographic and Segment Information (Schedule of Long-Lived Assets, by Geographical Areas) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Sep. 30, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 42,562	$ 29,286
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	9,384	440
Hong Kong
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	7	7
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	3,082	558
Taiwan
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 30,089	$ 28,281