Segment Reporting (Details) Revenue (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Segment Reporting, Revenue Reconciling Item
Revenues	$ 6,015	$ 7,678
Income (loss) before income taxes	(6,791)	(2,662)
Water Resource and Water Storage Operations
Segment Reporting, Revenue Reconciling Item
Revenues	1,455	353
Income (loss) before income taxes	(1,161)	(1,580)
Real Estate Operations
Segment Reporting, Revenue Reconciling Item
Revenues	3,824	1,171
Income (loss) before income taxes	(1,345)	(1,740)
Agribusiness Operations
Segment Reporting, Revenue Reconciling Item
Revenues	27	2
Income (loss) before income taxes	(526)	(385)
Insurance Operations in Run Off
Segment Reporting, Revenue Reconciling Item
Revenues	330	3,653
Income (loss) before income taxes	141	3,138
Corporate
Segment Reporting, Revenue Reconciling Item
Revenues	379	2,499
Income (loss) before income taxes	$ (3,900)	$ (2,095)