INVESTMENTS - SUMMARY OF REVENUES (Details) - Kaupulehu Developments - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Investment Holdings [Line Items]
Revenues - sale of interest in leasehold land	$ 0	$ 0	$ 485	$ 0
Fees - included in general and administrative expenses	0	0	(59)	0
Sale of interest in leasehold land, net of fees paid	$ 0	$ 0	$ 426	$ 0