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Investments (Tables) | 12 Months Ended
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Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract] |
Trading Investments Details | The cost, gross unrealized gains, gross unrealized losses, and fair market value of the Company’s trading investments at the fiscal years ended September 30, 2016 and 2015, was as follows:
|  | Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Total |
|  | (in thousands) |
2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual fund investments |  | $ | 4 |  |  | $ | 18 |  |  | $ | (14 | ) |  | $ | 8 |
Total |  |  | 4 |  |  |  | 18 |  |  |  | (14 | ) |  |  | 8 |
2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual fund investments |  |  | 4 |  |  |  | 16 |  |  |  | (13 | ) |  |  | 7 |
Total |  | $ | 4 |  |  | $ | 16 |  |  | $ | (13 | ) |  | $ | 7 |

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