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Supporting Financial Information - Other Income (Expense) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Mar. 31, 2016 | Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |  |
Document Fiscal Year Focus |  |  | 2016 |
Interest expense, net | $ 0 | $ (25) | $ 0 | $ (49)
Other expense, net | (127) | (626) | (702) | (638)
Other income (expense) net | $ (127) | $ (651) | $ (702) | $ (687)

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