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Balance Sheet Details Other Assets (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Sep. 30, 2012
Dec. 31, 2011
Balance Sheet Details [Abstract]      
Capitalized Software Development Costs for Software Sold to Customers $ 201   $ 562
Other Assets 1,893 5,172  
Other Assets, Noncurrent $ 2,094   $ 5,734