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Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014
Cash paid for: |  |  |
Interest | $ 26 | $ 286 | $ 438
Income taxes |  | 638 | 15,163
Noncash investing and financing activities: |  |  |
Inventory transferred to rental equipment | 3,982 | 5,013 | $ 10,742
Inventory transferred to property, plant and equipment | $ 130 | 98 |
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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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585 + Details
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