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RELATED PARTY TRANSACTIONS (Details) $ in Thousands | 12 Months Ended
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Sep. 30, 2021 USD ($) lot | Sep. 30, 2020 USD ($) lot
Gros Ventre Partners, LLC |  |
Related party transactions |  |
Profit sharing ratio of variable interest entity | 2.00% |
Asset management fee, percent fee of cumulative capital contributions | 1.00% |
Kaupulehu Developments |  |
Related party transactions |  |
Revenues - sale of interest in leasehold land | $ 1,738 | $ 325
Kaupulehu Developments | KD Kaupulehu, LLLP | Investments in land development partnerships | Increment I |  |
Related party transactions |  |
Revenues - sale of interest in leasehold land | $ 1,738 | $ 325
Number of single family lots sold | lot | 8 | 2
Four Pines Operating LLC | Gros Ventre Partners, LLC |  |
Related party transactions |  |
Interest owned by member of Board of Directors | 25.00% |
KD Acquisition, LLLP | Investments in land development partnerships |  |
Related party transactions |  |
Ownership interest acquired | 19.60% |
KD Acquisition II, LP | Barnwell Industries Inc | Investments in land development partnerships |  |
Related party transactions |  |
Ownership interest acquired | 10.80% |

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