INVESTMENTS (Details) (USD $)	9 Months Ended			9 Months Ended					9 Months Ended			9 Months Ended				3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Sep. 30, 2011	Jun. 30, 2011 Investment in two residential parcels	Jun. 30, 2012 Investment in two residential parcels	Sep. 30, 2011 Investment in two residential parcels	Jun. 30, 2012 Investment in joint ventures	Sep. 30, 2011 Investment in joint ventures	Jun. 30, 2011 Investment in Kona Village Investors, LLC	Jun. 30, 2012 Investment in leasehold land zoned conservation - Lot 4C acre	Sep. 30, 2011 Investment in leasehold land zoned conservation - Lot 4C	Jun. 30, 2012 Investment in lot acquisition rights - Mauka Lands residentiallot	Sep. 30, 2011 Investment in lot acquisition rights - Mauka Lands	Jun. 30, 2012 Investment in lot acquisition rights - Mauka Lands Minimum acre	Jun. 30, 2012 Investment in lot acquisition rights - Mauka Lands Maximum acre	Mar. 31, 2012 Kaupulehu 2007
Summary of investments
Total investments	$ 4,623,000		$ 4,623,000		$ 2,331,000	$ 2,331,000	$ 1,754,000	$ 1,754,000		$ 50,000	$ 50,000	$ 488,000	$ 488,000
Reduction of carrying value of assets	$ 1,854,000	$ 311,000		$ 190,000					$ 121,000							$ 1,854,000
Area of land (in acres)										1,000				2	5
Number of lot acquisition rights owned												14