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Investments (Tables) | 3 Months Ended
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Dec. 31, 2015
Equity [Abstract] |
Summary of Short and Long-term Investments | The following table s summarize the Company’s short- and long-term investments as of December 31, 2015, and Septem ber 30, 2015.
| As of December 31, 2015 |
| Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
Commercial notes (due within one year)......... | $ | 14,431,498 |  |  | $ | — |  |  | $ | (159,605 | ) |  | $ | 14,271,893 |
Commercial notes (due after one year through two years) | $ | — |  |  |  | — |  |  | $ | — |  |  | $ | — |
Total................................ | $ | 14,431,498 |  |  | $ | — |  |  | $ | (159,605 | ) |  | $ | 14,271,893 |
| As of September 30, 2015 |
| Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
Commercial notes (due within one year) | $ | 17,539,902 |  |  | $ | — |  |  | $ | (304,942 | ) |  | $ | 17,234,960 |
Commercial notes (due after one year through two years) | $ | — |  |  |  | — |  |  | $ | — |  |  | $ | — |
Total | $ | 17,539,902 |  |  | $ | — |  |  | $ | (304,942 | ) |  | $ | 17,234,960 |

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