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Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2015
Cash paid for: |  |  |
Interest | $ 39 | $ 26 | $ 286
Income taxes |  |  | 638
Noncash investing and financing activities: |  |  |
Inventory transferred to rental equipment | 1,677 | 3,982 | 5,013
Inventory transferred to property, plant and equipment | 1,863 | $ 130 | 98
Financing receivables in connection with sale of used rental equipment | $ 9,386 |  |
Settlement of note receivable in connection with return of rental equipment |  |  | 2,588
Prepaid assets transferred to property, plant and equipment |  |  | $ 4,219

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