INVESTMENTS - SUMMARY OF REVENUES (Details) - Kaupulehu Developments - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Investment Holdings [Line Items]
Revenues - sale of interest in leasehold land	$ 0	$ 165
Fees - included in general and administrative expenses	0	(20)
Sale of interest in leasehold land, net of fees paid	$ 0	$ 145

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