Quarterly report [Sections 13 or 15(d)]

WATER, LAND AND OTHER FIXED ASSETS - Schedule of investment in water and water systems (Details)

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WATER, LAND AND OTHER FIXED ASSETS - Schedule of investment in water and water systems (Details)
 3 Months Ended 6 Months Ended
Feb. 28, 2025
USD ($)
claim
acre ft
Feb. 28, 2025
USD ($)
claim
acre ft
Feb. 07, 2025
USD ($)
Aug. 31, 2024
USD ($)
Dec. 31, 2020
USD ($)
Property, Plant and Equipment, Net [Abstract]          
Water And Water Systems, Gross $ 77,437,000 $ 77,437,000   $ 72,251,000  
Accumulated depreciation and depletion (12,605,000) (12,605,000)   (11,765,000)  
Net investments in water and water systems 64,832,000 $ 64,832,000   60,486,000  
Cost of water and land portions of asset acquisition $ 0        
Volume of water adjudicated         1,635
Volume of water adjudicated, denied     1,635    
Remaining claims | claim 3 3      
Rangeview water system          
Property, Plant and Equipment, Net [Abstract]          
Water And Water Systems, Gross $ 24,825,000 $ 24,825,000   23,381,000  
Accumulated depreciation and depletion (3,996,000) (3,996,000)   (3,579,000)  
Rangeview water supply          
Property, Plant and Equipment, Net [Abstract]          
Water And Water Systems, Gross 16,117,000 16,117,000   15,889,000  
Accumulated depreciation and depletion (20,000) (20,000)   (20,000)  
Water supply - Other          
Property, Plant and Equipment, Net [Abstract]          
Water And Water Systems, Gross 7,647,000 7,647,000   7,588,000  
Accumulated depreciation and depletion (2,434,000) (2,434,000)   (2,307,000)  
Sky Ranch water rights and other costs          
Property, Plant and Equipment, Net [Abstract]          
Water And Water Systems, Gross 7,764,000 7,764,000   7,764,000  
Accumulated depreciation and depletion (1,705,000) (1,705,000)   (1,641,000)  
Sky Ranch pipeline          
Property, Plant and Equipment, Net [Abstract]          
Water And Water Systems, Gross 5,740,000 5,740,000   5,740,000  
Accumulated depreciation and depletion (1,462,000) (1,462,000)   (1,366,000)  
Lost Creek water supply          
Property, Plant and Equipment, Net [Abstract]          
Water And Water Systems, Gross 10,812,000 $ 10,812,000   7,357,000  
Cost of water and land portions of asset acquisition $ 3,500,000        
Henrylyn Irrigation District [Member]          
Property, Plant and Equipment, Net [Abstract]          
Volume of water purchased | acre ft 378 378      
Lost Creek Designated Basin [Member]          
Property, Plant and Equipment, Net [Abstract]          
Volume of water purchased | acre ft 300 300      
Fairgrounds water and water system          
Property, Plant and Equipment, Net [Abstract]          
Water And Water Systems, Gross $ 2,900,000 $ 2,900,000   2,900,000  
Accumulated depreciation and depletion (1,635,000) (1,635,000)   (1,591,000)  
Wild Pointe service rights          
Property, Plant and Equipment, Net [Abstract]          
Water And Water Systems, Gross 1,632,000 1,632,000   1,632,000  
Accumulated depreciation and depletion $ (1,353,000) $ (1,353,000)   $ (1,261,000)