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Note 4 - Property, Plant, Equipment and Water Programs - Property, Plant, Equipment and Water Programs (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Property, plant, and equipment $ 92,279 $ 86,377
Less accumulated depreciation (8,141) (7,487)
Property, plant, and equipment, net 84,138 78,890
Land and Land Improvements [Member]    
Property, plant, and equipment 30,579 27,548
Water Programs [Member]    
Property, plant, and equipment 29,210 28,784
Pipelines [Member]    
Property, plant, and equipment 22,091 22,087
Building [Member]    
Property, plant, and equipment 1,715 1,599
Leasehold Improvements, Furniture, Fixtures [Member]    
Property, plant, and equipment 1,609 1,031
Machinery and Equipment [Member]    
Property, plant, and equipment 3,395 2,200
Construction in Progress [Member]    
Property, plant, and equipment $ 3,680 $ 3,128