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Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2013
Income Taxes [Line Items]      
Current $ 1,229 $ 4,979 $ 5,153
Deferred 3,935 937 261
Total income tax expense $ 5,164 $ 5,916 $ 5,414