| Segment Reporting |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | Three Months Ended February 29, 2024 |  
| (In thousands) |      | Water and wastewater resource development |      | Land development |  | Single-family rental |      |     Total |  
| Total revenue |      | $ |  1,816 |      | $ |  1,256 |  | $ |  125 |      | $ |  3,197 |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
| Cost of revenue |  |   |  778 |  |   |  249 |  |   |  33 |  |   |  1,060 |  
| Depreciation and depletion |  |   |  360 |  |   |  — |  |   |  — |  |   |  360 |  
| Total cost of revenue |  |   |  1,138 |  |   |  249 |  |   |  33 |  |   |  1,420 |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
| Segment profit |  | $ |  678 |  | $ |  1,007 |  | $ |  92 |  | $ |  1,777 |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | Three Months Ended February 28, 2023 |  
| (In thousands) |      | Water and wastewater resource development |      | Land development |  | Single-family rental |      |     Total |  
| Total revenue |  | $ |  1,454 |  | $ |  1,514 |  | $ |  31 |  | $ |  2,999 |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
| Cost of revenue |  |   |  659 |  |   |  271 |  |   |  19 |  |   |  949 |  
| Depreciation and depletion |  |   |  461 |  |   |  — |  |   |  — |  |   |  461 |  
| Total cost of revenue |  |   |  1,120 |  |   |  271 |  |   |  19 |  |   |  1,410 |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
| Segment profit |  | $ |  334 |  | $ |  1,243 |  | $ |  12 |  | $ |  1,589 |   
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | Six Months Ended February 29, 2024 |  
| (In thousands) |      | Water and wastewater resource development |      | Land development |  | Single-family rental |      |     Total |  
| Total revenue |      | $ |  5,097 |      | $ |  3,252 |  | $ |  234 |      | $ |  8,583 |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
| Cost of revenue |  |   |  1,636 |  |   |  1,016 |  |   |  90 |  |   |  2,742 |  
| Depreciation and depletion |  |   |  722 |  |   |  — |  |   |  — |  |   |  722 |  
| Total cost of revenue |  |   |  2,358 |  |   |  1,016 |  |   |  90 |  |   |  3,464 |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
| Segment (loss) profit |  | $ |  2,739 |  | $ |  2,236 |  | $ |  144 |  | $ |  5,119 |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | Six Months Ended February 28, 2023 |  
| (In thousands) |      | Water and wastewater resource development |      | Land development |  | Single-family rental |      |     Total |  
| Total revenue |  | $ |  2,248 |  | $ |  2,035 |  | $ |  56 |  | $ |  4,339 |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
| Cost of revenue |  |   |  1,382 |  |   |  486 |  |   |  29 |  |   |  1,897 |  
| Depreciation and depletion |  |   |  839 |  |   |  — |  |   |  — |  |   |  839 |  
| Total cost of revenue |  |   |  2,221 |  |   |  486 |  |   |  29 |  |   |  2,736 |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
| Segment profit |  | $ |  27 |  | $ |  1,549 |  | $ |  27 |  | $ |  1,603 |   
|  |  |  |  |  |  |  |  
| (In thousands) |      | February 29, 2024 |      | August 31, 2023 |  
| Water and wastewater resource development |  | $ |  64,168 |  | $ |  63,129 |  
| Land development |  |  |  10,520 |  |  |  7,710 |  
| Single-family rental |  |  |  5,224 |  |  |  5,128 |  
| Corporate |  |  |  55,314 |  |  |  57,249 |  
| Total assets    |  | $ |  135,226 |  | $ |  133,216 |   |