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Long Term Water Assets (Details) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2012 | Dec. 31, 2011
--- | --- | ---
Components of water assets |  |
Total long-term assets | $ 29,505 | $ 29,044
less: Current portion | (708) | (708)
Long-lived assets held-for-sale | 28,797 | 28,336
Banked water and water for future delivery [Member] |  |
Components of water assets |  |
Total long-term assets | 4,364 | 3,546
Transferable water [Member] |  |
Components of water assets |  |
Total long-term assets | 8,988 | 8,988
SWP Contracts [Member] |  |
Components of water assets |  |
Total long-term assets | $ 16,153 | $ 16,510

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