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Goodwill and Intangible Assets (Details Textual) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2013
Goodwill And Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months $ 724    
Finite-Lived Intangible Assets, Amortization Expense, Year Two 659    
Finite-Lived Intangible Assets, Amortization Expense, Year Three 568    
Finite-Lived Intangible Assets, Amortization Expense, Year Four 555    
Finite-Lived Intangible Assets, Amortization Expense, Year Five 543    
Finite-Lived Intangible Assets, Amortization Expense, after Year Five 2,120    
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) 1,705 $ 1,263 $ 0
Goodwill and Intangible Asset Impairment $ 0 $ 613