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Note 5 - Property, Plant, Equipment and Water Programs (Details Textual)
12 Months Ended
Dec. 31, 2023
USD ($)
a
Dec. 31, 2022
USD ($)
Area of Land (Acre) | a 46,000  
Depreciation | $ $ 1,247,000 $ 654,000
Property Related to Development of Alfalfa [Member]    
Construction in Progress, Gross | $ $ 1,906,000  
Area of Land (Acre) | a 150