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Investments (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2014
Sep. 30, 2015
Schedule of Equity Method Investments [Line Items]      
Investments $ 2,716   $ 2,733
Equity losses $ 17 $ 0  
Kingstone Holding Company      
Schedule of Equity Method Investments [Line Items]      
Equity method investment, ownership percentage 15.00%    
Investments $ 2,700    
Equity losses $ 100    
Shanghai Operating Entity      
Schedule of Equity Method Investments [Line Items]      
Equity method investment, ownership percentage 10.00%