SUBSEQUENT EVENTS (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 21, 2021 USD ($) lot	Sep. 30, 2021 USD ($) lot	Sep. 30, 2020 USD ($)
Investments in land development partnerships
Subsequent Event [Line Items]
Cash distribution from equity method investment		$ 6,011	$ 360
Kaupulehu Developments
Subsequent Event [Line Items]
Sale of interest in leasehold land		$ 1,738	$ 325
Kaupulehu Developments | KD Kaupulehu LLLP Increment I
Subsequent Event [Line Items]
Number of single family lots sold | lot		8
Subsequent Event | Drilling rigs and equipment
Subsequent Event [Line Items]
Proceeds from the sale of asset	$ 687
Subsequent Event | Investments in land development partnerships
Subsequent Event [Line Items]
Cash distribution from equity method investment	1,075
Subsequent Event | Kaupulehu Developments | KD Kaupulehu LLLP Increment I
Subsequent Event [Line Items]
Sale of interest in leasehold land	$ 600
Number of single family lots sold | lot	3