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RELATED PARTY TRANSACTIONS (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2021 USD ($) | Mar. 31, 2020 USD ($) | Mar. 31, 2021 USD ($) lot | Mar. 31, 2020 USD ($)
Kaupulehu Developments |  |  |  |
Related party transactions |  |  |  |
Revenues - sale of interest in leasehold land | $ 0 | $ 0 | $ 485 | $ 0
Kaupulehu Developments | KD Kaupulehu, LLLP | Investment in land development partnerships | Increment I |  |  |  |
Related party transactions |  |  |  |
Revenues - sale of interest in leasehold land |  |  | $ 485 |
Number of single family lots sold | lot |  |  | 2 |
KD Acquisition, LLLP | Investment in land development partnerships |  |  |  |
Related party transactions |  |  |  |
Ownership interest acquired | 19.60% |  | 19.60% |
KD Acquisition II, LP | Barnwell Industries Inc | Investment in land development partnerships |  |  |  |
Related party transactions |  |  |  |
Ownership interest acquired | 10.80% |  | 10.80% |

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