INVESTMENTS - SUMMARY OF REVENUES (Details) - Kaupulehu Developments - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Investment Holdings [Line Items]
Revenues - sale of interest in leasehold land	$ 1,738	$ 325
Fees - included in general and administrative expenses	(212)	(40)
Sale of interest in leasehold land, net of fees paid	$ 1,526	$ 285