| Investments in Water and Water Systems | The Company’s Investments in water and water systems consist of the following costs and accumulated depreciation and depletion:  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | November 30, 2023 |  | August 31, 2023 |  
|  |  |  |  |  | Accumulated |  |  |  |  | Accumulated |  
|  |  |  |  |  | Depreciation |  |  |  |  | Depreciation |  
| (In thousands) |      | Costs |      | and Depletion |      | Costs |      | and Depletion |  
| Rangeview water system |  | $ |  20,149 |  | $ |  (2,996) |  | $ |  20,020 |  | $ |  (2,813) |  
| Rangeview water supply |  |  |  15,192 |  |  |  (19) |  |  |  15,084 |  |  |  (18) |  
| Water supply – Other |  |   |  7,588 |  |   |  (2,110) |  |   |  7,612 |  |   |  (2,064) |  
| Sky Ranch water rights and other costs |  |   |  7,764 |  |   |  (1,529) |  |   |  7,764 |  |   |  (1,487) |  
| Sky Ranch pipeline |  |   |  5,740 |  |   |  (1,223) |  |   |  5,740 |  |   |  (1,175) |  
| Lost Creek water supply |  |   |  7,357 |  |   |  — |  |   |  7,328 |  |   |  — |  
| Fairgrounds water and water system |  |   |  2,900 |  |   |  (1,525) |  |   |  2,900 |  |   |  (1,503) |  
| Wild Pointe service rights |  |   |  1,632 |  |   |  (1,222) |  |   |  1,632 |  |   |  (1,222) |  
| Totals |  |   |  68,322 |  |   |  (10,624) |  |   |  68,080 |  |   |  (10,282) |  
| Net investments in water and water systems |  | $ |  57,698 |  |  |  |  | $ |  57,798 |  |  |  |  |