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Business Combination - Intangible Assets Estimated Future Amortization Expense (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Sep. 30, 2014
Business Acquisition [Line Items]    
Carrying Value $ 7,331 $ 7,595
Customer relationships    
Business Acquisition [Line Items]    
2016 727  
2017 721  
2018 721  
2019 721  
2020 721  
Thereafter 2,066  
Carrying Value $ 5,677 $ 5,787