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Revenue (Tables) | 9 Months Ended
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Sep. 30, 2025
Revenue [Abstract] |
Operating Revenues Disaggregated by Service and Customer Type | The following table shows the Company’s operating revenues disaggregated by service and customer type.
|  | Three Months Ended September 30 |  |  | Nine Months Ended September 30 |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Water utility service: |  |  |  |  |  |  |  |  |  |  |  |
Residential |  | $ | 11,343 |  |  | $ | 10,887 |  |  | $ | 32,219 |  |  | $ | 31,153 |
Commercial and industrial |  |  | 5,592 |  |  |  | 5,527 |  |  |  | 15,742 |  |  |  | 15,292 |
Fire protection |  |  | 1,240 |  |  |  | 1,156 |  |  |  | 3,644 |  |  |  | 3,360 |
Wastewater utility service: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential |  |  | 1,695 |  |  |  | 1,578 |  |  |  | 4,891 |  |  |  | 4,554 |
Commercial and industrial |  |  | 334 |  |  |  | 301 |  |  |  | 1,028 |  |  |  | 969 |
Billing and revenue collection services |  |  | 18 |  |  |  | 121 |  |  |  | 61 |  |  |  | 373 |
Collection services |  |  | 9 |  |  |  | 25 |  |  |  | 42 |  |  |  | 28 |
Other revenue |  |  | 15 |  |  |  | 6 |  |  |  | 44 |  |  |  | 22 |
Total Revenue from Contracts with Customers |  |  | 20,246 |  |  |  | 19,601 |  |  |  | 57,671 |  |  |  | 55,751 |
Rents from regulated property |  |  | 115 |  |  |  | 114 |  |  |  | 345 |  |  |  | 342 |
Total Operating Revenue |  | $ | 20,361 |  |  | $ | 19,715 |  |  | $ | 58,016 |  |  | $ | 56,093 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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