Note 3 - Property, Plant, Equipment and Water Programs (Details) - Property, Plant, Equipment and Water Programs (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 49,029	$ 48,956
Less accumulated depreciation	(5,389)	(5,136)
	43,640	43,820
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	24,202	24,191
Water Programs [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	21,324	21,324
Building [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,200	1,187
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	570	570
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	458	458
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,176	1,129
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 99	$ 97