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DEBT - Long-Term Debt (Details) - USD ($) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Sep. 30, 2022
Long-term obligations |  |
Long-term debt | $ 15,474,628 | $ 8,979,569
Less current maturities | (2,758,738) | (1,595,309)
Long-term debt less current maturities | 12,715,890 | 7,384,260
4.50% Unsecured Note Payable |  |
Long-term obligations |  |
Long-term debt | $ 891,725 | $ 968,589
Fixed interest rate (as a percent) | 4.50% | 4.50%
Periodic installments of principal and interest | $ 49,114 | $ 49,114
4.10% Note Payable |  |
Long-term obligations |  |
Long-term debt | $ 5,384,871 | $ 5,572,766
Fixed interest rate (as a percent) | 4.10% | 4.10%
Periodic installments of principal and interest | $ 53,361 | $ 53,361
3.25% Note Payable |  |
Long-term obligations |  |
Long-term debt | $ 1,962,408 | $ 2,052,327
Fixed interest rate (as a percent) | 3.25% | 3.25%
Periodic installments of principal and interest | $ 17,016 | $ 17,016
2.90% Note Payable |  |
Long-term obligations |  |
Long-term debt | 335,843 | 385,887
Periodic installments of principal and interest | $ 7,934 | $ 7,934
Variable rate | 2.90% | 2.90%
6.04% Note Payable |  |
Long-term obligations |  |
Long-term debt | $ 6,899,781 |
Fixed interest rate (as a percent) | 6.04% |
Periodic installments of principal and interest | $ 135,469 |

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