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Basis of Presentation - Deferred Profit (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Deferred revenues $ 7,536 $ 8,118
Deferred costs 2,416 1,210
Deferred profit $ 5,120 $ 6,908