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Revenue Recognition - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 15,519 | $ 14,321 | $ 42,217 | $ 39,441
Water service |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 8,481 | 7,493 | 21,829 | 19,387
Regulated Operation | Water service |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 8,481 | 7,493 | 21,829 | 19,387
Regulated Operation | Water service | Residential |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 5,583 | 5,034 | 14,961 | 14,003
Regulated Operation | Water service | Irrigation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 1,530 | 1,205 | 3,323 | 2,459
Regulated Operation | Water service | Commercial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 652 | 446 | 1,447 | 1,158
Regulated Operation | Water service | Multi-family |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 121 | 95 | 313 | 231
Regulated Operation | Water service | Construction |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 251 | 469 | 1,002 | 861
Regulated Operation | Water service | Other water revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 344 | 244 | 783 | 675
Regulated Operation | Wastewater and recycled water service |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 7,038 | 6,828 | 20,388 | 20,054
Regulated Operation | Wastewater and recycled water service | Residential |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 5,978 | 5,796 | 17,775 | 17,607
Regulated Operation | Wastewater and recycled water service | Commercial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 297 | 292 | 877 | 908
Regulated Operation | Wastewater and recycled water service | Multi-family |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 93 | 44 | 200 | 126
Regulated Operation | Wastewater and recycled water service | Recycled water revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 568 | 607 | 1,266 | 1,133
Regulated Operation | Wastewater and recycled water service | Other wastewater revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 102 | $ 89 | $ 270 | $ 280

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