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Significant Accounting Policies - Goodwill And Income Taxes (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Sep. 30, 2015
Accounting Policies [Abstract]    
Goodwill $ 8,595 $ 8,595
Current taxes payable 37  
Deferred tax assets 12,200 12,100
Valuation allowance against net deferred tax assets $ 1,800 $ 1,800