COMMITMENTS AND CONTINGENCIES - Schedule of Principal Balances of Unused Line of Credit and Delayed Draw Term Debt Commitments and Guaranties (Details) - USD ($) $ in Thousands |
Jun. 30, 2025 |
Sep. 30, 2024 |
|---|---|---|
| Other Commitments [Line Items] | ||
| Total | $ 48,669 | $ 57,594 |
| Unused line of credit commitments | ||
| Other Commitments [Line Items] | ||
| Total | 40,326 | 42,601 |
| Delayed draw term loans | ||
| Other Commitments [Line Items] | ||
| Total | 7,500 | 14,150 |
| Uncalled capital commitment | ||
| Other Commitments [Line Items] | ||
| Total | $ 843 | $ 843 |