FAIR VALUE MEASUREMENTS (Details) (USD $)	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Fair value measurements
Real estate held for sale	$ 5,309,000	$ 12,640,000
Investments	2,381,000	4,623,000
Total reduction of carrying value of assets	6,647,000	1,228,000
Investment in residential parcels
Fair value measurements
Investments	2,331,000	2,331,000
Total reduction of carrying value of assets		689,000
Investment in joint ventures
Fair value measurements
Investments		1,754,000
Total reduction of carrying value of assets	1,754,000
Investment in Kona Village Resort
Fair value measurements
Investments	0
Total reduction of carrying value of assets		121,000
Investment in lot acquisition rights - Mauka Lands
Fair value measurements
Investments		488,000
Total reduction of carrying value of assets	488,000
Nonrecurring | Real estate held for sale
Fair value measurements
Total reduction of carrying value of assets	1,854,000	418,000
Nonrecurring | Investment in residential parcels
Fair value measurements
Total reduction of carrying value of assets		689,000
Nonrecurring | Investment in joint ventures
Fair value measurements
Total reduction of carrying value of assets	1,754,000	121,000
Nonrecurring | Investment in lot acquisition rights - Mauka Lands
Fair value measurements
Total reduction of carrying value of assets	488,000
Nonrecurring | Significant Other Observable Inputs (Level 2) | Real estate held for sale
Fair value measurements
Real estate held for sale	5,309,000	12,640,000
Nonrecurring | Significant Other Observable Inputs (Level 2) | Investment in residential parcels
Fair value measurements
Investments		2,331,000
Nonrecurring | Significant Unobservable Inputs (Level 3) | Investment in joint ventures
Fair value measurements
Investments		1,754,000
Nonrecurring | Carrying Amount | Real estate held for sale
Fair value measurements
Real estate held for sale	5,309,000	12,640,000
Nonrecurring | Carrying Amount | Investment in residential parcels
Fair value measurements
Investments		2,331,000
Nonrecurring | Carrying Amount | Investment in joint ventures
Fair value measurements
Investments		$ 1,754,000