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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 |  |  |  |

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