INVESTMENTS (Details)			1 Months Ended	10 Months Ended	12 Months Ended
	Jul. 25, 2014 USD ($)	Nov. 27, 2013 USD ($) partnership	Oct. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) a home increment parcel lot	Sep. 30, 2014 USD ($)
Summary of investments
Total investments				$ 5,900,000	$ 6,288,000	$ 5,900,000
Number of residential parcels owned | home					1
Proceeds from Sale of Land Held-for-investment			$ 1,250,000
Equity in income (loss) of affiliates					$ 1,580,000	(482,000)
Revenues sale of interest in leasehold land, net					3,244,000	636,000
Additional payment received				102,000	0	102,000
Gain on sale of investments					0	3,399,000
Gain on sale of investments relating to Non-Controlling Interest					$ 506,000	666,000
Kaupulehu Developments
Summary of investments
Area of land (in acres) | a					870
Number of development increments | increment					2
Sale of interest in leasehold land: Proceeds					$ 3,772,000	740,000
Sale of interest in leasehold land: Fees					(528,000)	(104,000)
Revenues sale of interest in leasehold land, net					$ 3,244,000	636,000
Ownership interest in subsidiaries					77.60%
Kaupulehu Investors, LLC
Summary of investments
Ownership interest in subsidiaries					80.00%
Kaupulehu Investors, LLC | Haulalai Resort and Kona Village Resort
Summary of investments
Total investments	$ 0
Ownership interest in subsidiaries	80.00%
Cash proceeds received	$ 3,297,000
Gain on sale of investments	3,399,000
Gain on sale of investments relating to Non-Controlling Interest	679,000
Capital and operating cash call investments	$ 3,193,000
Kaupulehu Investors, LLC | Haulalai Resort
Summary of investments
Passive minority interests in various joint ventures	1.50%
Kaupulehu Investors, LLC | Kona Village Resort
Summary of investments
Passive minority interests in various joint ventures	1.50%
Kaupulehu Investors, LLC | Sale of an interest in a related utility
Summary of investments
Additional payment received	$ 102,000
KD Kaupulehu LLLP Increment I | Kaupulehu Developments
Summary of investments
Gross proceeds from sale of Increment I single-family lots on which payments to be received from KD I is based					$ 199,000,000
Number of lots sold in Increment I | lot					17
Number of single-family lots planned in Increment I | lot					80
KD Kaupulehu LLLP Increment I | Kaupulehu Developments | Phase I
Summary of investments
Number of lots sold in Increment I | lot					38
KD Kaupulehu LLLP Increment I | Kaupulehu Developments | Phase II
Summary of investments
Number of lots sold in Increment I | lot					14
Number of single-family lots planned in Increment I | lot					42
KD Kaupulehu LLLP Increment I | Kaupulehu Developments | Aggregate gross proceeds up to $100,000,000
Summary of investments
Payments entitled to be received from KD I as percentage of gross receipts from KD I's sales of single-family residential lots in Increment I					9.00%
KD Kaupulehu LLLP Increment I | Kaupulehu Developments | Aggregate gross proceeds greater than $100,000,000 up to $300,000,000
Summary of investments
Payments entitled to be received from KD I as percentage of gross receipts from KD I's sales of single-family residential lots in Increment I					10.00%
KD Kaupulehu LLLP Increment I | Kaupulehu Developments | Aggregate gross proceeds in excess of $300,000,000
Summary of investments
Payments entitled to be received from KD I as percentage of gross receipts from KD I's sales of single-family residential lots in Increment I					14.00%
KD Kaupulehu LLLP Increment I | Kaupulehu Developments | Minimum | Aggregate gross proceeds greater than $100,000,000 up to $300,000,000
Summary of investments
Gross proceeds from sale of Increment I single-family lots on which payments to be received from KD I is based					$ 100,000,000
KD Kaupulehu LLLP Increment I | Kaupulehu Developments | Minimum | Aggregate gross proceeds in excess of $300,000,000
Summary of investments
Gross proceeds from sale of Increment I single-family lots on which payments to be received from KD I is based					300,000,000
KD Kaupulehu LLLP Increment I | Kaupulehu Developments | Maximum | Aggregate gross proceeds up to $100,000,000
Summary of investments
Gross proceeds from sale of Increment I single-family lots on which payments to be received from KD I is based					100,000,000
KD Kaupulehu LLLP Increment I | Kaupulehu Developments | Maximum | Aggregate gross proceeds greater than $100,000,000 up to $300,000,000
Summary of investments
Gross proceeds from sale of Increment I single-family lots on which payments to be received from KD I is based					$ 300,000,000
KD Kaupulehu LLLP Increment II | Kaupulehu Developments | Minimum
Summary of investments
Area of land (in acres) | a					2
KD Kaupulehu LLLP Increment II | Kaupulehu Developments | Maximum
Summary of investments
Area of land (in acres) | a					3
Investment in land development partnerships
Summary of investments
Total investments				4,658,000	$ 6,238,000	4,658,000
Number of limited liability limited partnerships formed | partnership		2
Equity in income (loss) of affiliates					1,580,000	(482,000)
Basis difference between the underlying equity in net assets of the investee and the carrying value of the entity's investment					390,000
Basis difference adjustment					82,000
Bonds issued by the surety					4,144,000
Maximum loss exposure					10,382,000
Summarized financial information
Revenue				5,114,000	29,898,000
Gross profit				2,058,000	13,594,000
Net income (loss)				(1,614,000)	7,500,000
Investment in land development partnerships | KD Kukio Resorts, LLLP, KD Maniniowali, LLLP, and KD Kaupulehu, LLLP
Summary of investments
Ownership interest acquired, aggregate cost		$ 5,140,000
Investment in land development partnerships | KD Kukio Resorts, LLLP
Summary of investments
Ownership interest acquired		19.60%
Investment in land development partnerships | KD Maniniowali, LLLP
Summary of investments
Ownership interest acquired		19.60%
Investment in land development partnerships | KD Kaupulehu, LLLP
Summary of investments
Ownership interest acquired		19.60%
Investment in land
Summary of investments
Total investments				1,192,000	$ 0	1,192,000
Number of residential parcels owned | parcel					1
Investment in land | KD Maniniowali, LLLP
Summary of investments
Number of residential parcels held by equity method investment | lot					1
Investment in land | KD Kaupulehu LLLP Increment I
Summary of investments
Number of residential parcels held by equity method investment | lot					28
Investment in land | KD Kaupulehu LLLP Increment II
Summary of investments
Number of residential parcels held by equity method investment | lot					2
Investment in leasehold land interest - Lot 4C
Summary of investments
Total investments				$ 50,000	$ 50,000	$ 50,000
Area of land (in acres) | a					1,000