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Long-Term Debt (Tables) | 12 Months Ended
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Sep. 30, 2020
Debt Disclosure [Abstract] |
Components of Long-Term Debt | Long-term debt consisted of the following (in thousands):
| September 30,
| 2020 |  | 2019
Industrial development revenue bonds | $ | 800 |  |  | $ | 1,200 |
Less: current portion | (400) |  |  | (400) |
Total long-term debt | $ | 400 |  |  | $ | 800 |
Schedule of Maturities of Long-Term Debt | The annual maturities of long-term debt as of September 30, 2020, were as follows (in thousands):
Year Ending September 30, | Long‑Term Debt Maturities
2021 | $ | 400 |
Total long-term debt maturities | $ | 400 |

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