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Debt (Details) - Revolving Credit Facility [Member] - USD ($)
$ in Thousands
Mar. 31, 2016
Sep. 30, 2015
Line Of Credit Facility [Line Items]    
Line Of Credit Facility Amount Outstanding $ 10,224 $ 10,234
Line Of Credit Facility Interest Rate During Period 2.75% 2.38%
Letters of Credit Outstanding, Amount $ 6,918  
Line of Credit Facility, Remaining Borrowing Capacity $ 22,591