Segment Reporting (Details) Revenue (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Segment Reporting, Revenue Reconciling Item
Revenues	$ 67,366	$ 16,643	$ 85,601	$ 30,557
Income (loss) before income taxes	(8,734)	(18,290)	(26,271)	(25,941)
Water Resource and Water Storage Operations
Segment Reporting, Revenue Reconciling Item
Revenues	1,089	384	2,900	1,073
Income (loss) before income taxes	(1,559)	(17,470)	(4,537)	(20,532)
Real Estate Operations
Segment Reporting, Revenue Reconciling Item
Revenues	23,585	14,585	28,998	22,928
Income (loss) before income taxes	2,237	2,244	(1,519)	265
Agribusiness Operations
Segment Reporting, Revenue Reconciling Item
Revenues	42,084	1	51,768	8
Income (loss) before income taxes	(6,105)	(695)	(9,159)	(1,668)
Corporate
Segment Reporting, Revenue Reconciling Item
Revenues	608	1,673	1,935	6,548
Income (loss) before income taxes	$ (3,307)	$ (2,369)	$ (11,056)	$ (4,006)