Summary of Significant Accounting Policies - Reclassification Adjustments (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2015	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue, Major Customer [Line Items]
Reclassification adjustment		$ 1,014			$ 815
Water assets sales price			$ 10,165	$ 7,702
Cost of purchased water			5,483	4,523
Segment revenues			51,147	51,069	45,000
Modified share-based awards	$ 1,065		1,065
Segment losses			54,343	49,126	44,162
Farming
Revenue, Major Customer [Line Items]
Reclassification adjustment				1,361	928
Ranch operations
Revenue, Major Customer [Line Items]
Segment revenues			3,923	3,534	3,693
Segment losses			6,112	5,998	6,049
Operating Segments | Farming
Revenue, Major Customer [Line Items]
Segment revenues			23,836	23,435	23,610
Segment losses			18,984	16,250	15,926
Operating Segments | Ranch operations
Revenue, Major Customer [Line Items]
Segment revenues			$ 3,923	3,534	3,693
Reclassification adjustment | Other Income
Revenue, Major Customer [Line Items]
Management fees				$ 183	$ 338