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DISTRIBUTIONS TO COMMON STOCKHOLDERS (Tables) | 6 Months Ended
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Mar. 31, 2024
Equity [Abstract] |
Schedule of Dividends Declared | We paid the following monthly distributions to common stockholders for the six months ended March 31, 2024 and 2023:
Fiscal Year |  | Declaration Date |  | Record Date |  | Payment Date |  | Distribution per Common Share
2024 |  | October 10, 2023 |  | October 20, 2023 |  | October 31, 2023 |  | $ | 0.0825 |
|  | October 10, 2023 |  | November 20, 2023 |  | November 30, 2023 |  | 0.0825 |
|  | October 10, 2023 |  | December 18, 2023 |  | December 29, 2023 |  | 0.0825 |
|  | January 9, 2024 |  | January 23, 2024 |  | January 31, 2024 |  | 0.0825 |
|  | January 9, 2024 |  | February 21, 2024 |  | February 29, 2024 |  | 0.0825 |
|  | January 9, 2024 |  | March 21, 2024 |  | March 29, 2024 |  | 0.0825 |
|  | Six Months Ended March 31, 2024: |  | $ | 0.495 |
Fiscal Year |  | Declaration Date |  | Record Date |  | Payment Date |  | Distribution per Common Share
2023 |  | October 11, 2022 |  | October 21, 2022 |  | October 31, 2022 |  | $ | 0.070 |
|  | October 11, 2022 |  | November 18, 2022 |  | November 30, 2022 |  | 0.070 |
|  | October 11, 2022 |  | December 20, 2022 |  | December 30, 2022 |  | 0.070 |
|  | January 10, 2023 |  | January 20, 2023 |  | January 31, 2023 |  | 0.075 |
|  | January 10, 2023 |  | February 17, 2023 |  | February 28, 2023 |  | 0.075 |
|  | January 10, 2023 |  | March 17, 2023 |  | March 31, 2023 |  | 0.075 |
|  | Six Months Ended March 31, 2023: |  | $ | 0.435 |
Schedule of Investment Company, Components Of Distributable Earnings (Accumulated Losses) | For the six months ended March 31, 2024 and the fiscal year ended September 30, 2023, we recorded the following adjustments for book-tax differences to reflect tax character. Results of operations, total net assets, and cash flows were not affected by these adjustments.
| Six Months Ended March 31, 2024 |  | Year Ended September 30, 2023
Undistributed net investment income | $ | (213) |  |  | $ | (373) |
Accumulated net realized gain | 215 |  |  | 373 |
Capital in excess of par value | (2) |  |  | — |

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