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Investments | 3 Months Ended
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Dec. 31, 2014
Investments All Other Investments [Abstract] |
Investments | NOTE 3. INVESTMENTS The Company invests its excess cash balances in short-term and long-term debt securities. Investments at December 31, 2014 consisted of corporate bonds with maturities remaining of less than two years at the time of purchase. The Company may also invest excess cash balances in certificates of deposit, money market accounts, US Treasuries, US government agency obligations, corporate debt securities, and/or commercial paper. The Company accounts for its investments in accordance with FASB ASC 320, Investments – Debt and Equity Securities. At December 31, 2014, all investments were classified as held-to-maturity securities. The following tables summarize the Company’s short and long-term investments as of December 31, 2014, and September 30, 2014.
| As of December 31, 2014 |
| Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
Commercial notes (due within one year) | $ | 23,532,402 |  |  | $ | — |  |  | $ | (313,407 | ) |  | $ | 23,218,995 |
Commercial notes (due after one year through two years) | $ | 17,806,499 |  |  |  | — |  |  | $ | (266,426 | ) |  | $ | 17,540,073 |
Total | $ | 41,338,901 |  |  | $ | — |  |  | $ | (579,833 | ) |  | $ | 40,759,068 |
| As of September 30, 2014 |
| Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
Commercial notes (due within one year) | $ | 21,653,032 |  |  | $ | — |  |  | $ | (189,830 | ) |  | $ | 21,463,202 |
Commercial notes (due after one year through two years) | $ | 23,088,346 |  |  |  | — |  |  | $ | (217,693 | ) |  | $ | 22,870,653 |
Total | $ | 44,741,378 |  |  | $ | — |  |  | $ | (407,523 | ) |  | $ | 44,333,855 |

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