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Note 3 - Property, Plant, Equipment, and Water Programs (Tables)
 12 Months Ended
Dec. 31, 2015
Notes Tables  
Property, Plant and Equipment [Table Text Block]
 
 
December 31,
 
 
 
2015
 
 
2014
 
                 
Land and land improvements
   $ 24,781     $ 24,202  
Water programs
     21,324       21,324  
Buildings
     1,572       1,200  
Leasehold improvements
     570       570  
Furniture and fixtures
     461       458  
Machinery and equipment
     1,313       1,176  
Construction in progress
     112       99  
      50,133       49,029  
Less accumulated depreciation
     (5,659
)
    (5,389
)
                 
    $ 44,474     $ 43,640