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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Sep. 30, 2017
Accounting Policies [Abstract] |
Supplemental Disclosures of Cash Flow Information | Supplemental Disclosures of Cash Flow Information (in thousands):
| Year Ended September 30,
| 2017 |  | 2016 |  | 2015
Cash paid (received) during the period for: |  |  |  |  |
Interest paid, net of interest income | $ | (384 | ) |  | $ | 4 |  |  | 70 |
Income taxes paid, net of refunds | (764 | ) |  | (352 | ) |  | 2,298 |
Non-cash capital expenditures | 634 |  |  | 221 |  |  | 147 |

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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
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