COMMITMENTS AND CONTINGENCIES (Detail) - USD ($)	12 Months Ended
Sep. 30, 2017	Sep. 30, 2016
Commitments and contingencies
Deferred rent	$ 21,000	$ 0
Kaupulehu Developments
Commitments and contingencies
Fees to be paid to Nearco	10.40%
Percentage of Increment II receipts to be paid to external real estate counsel for services provided in the negotiation and closing of the Increment II transaction	1.20%
Gas leak [Member]
Commitments and contingencies
Percentage of working interest	50.00%
Accrual for environmental remediation costs	$ 2,000	200,000
Lease Agreements [Member]
Commitments and contingencies
Rental expense	426,000	404,000
Deferred rent	21,000	$ 0
Minimum rental payments
2018	298,000
2019	277,000
2020	277,000
2021	277,000
2022	219,000
Thereafter through 2047	6,482,000
Total	$ 7,830,000

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Represents the percentage of Increment II receipts to be paid to legal counsel for services provided in the negotiation and closing of real estate transactions represented as percentage of sales payments received.

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Represents the amount of fees to be paid for promotion and marketing of real estate properties represented as percentage of gross receipts from real estate transaction.

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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