INVESTMENTS INVESTMENTS - SUMMARY OF REVENUES (Details) - Kaupulehu Developments - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Investment Holdings [Line Items]
Revenues - sale of interest in leasehold land	$ 325	$ 165
Fees - included in general and administrative expenses	40	20
Sale of interest in leasehold land, net of fees paid	$ 285	$ 145

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_InvestmentHoldingsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration