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v3.25.1

REVENUE RECOGNITION, Disaggregated Revenues (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2025 USD ($) Contract | Mar. 31, 2024 USD ($)
REVENUE RECOGNITION [Abstract] |  |
Reserve or reduction to revenue | $ 0 |
Minimum number of days due for accounts receivable from tariff contract customers | 25 days |
Minimum number of days due for accounts receivable from SLP Plan customer | 25 days |
Minimum number of days customers services invoiced in advance | 30 days |
Number of operation contracts paid in advance | Contract | 1 |
Disaggregation of Revenue [Abstract] |  |
Other Operating Revenue not in scope of ASC 606 | $ 440 | $ 347
Revenues | 25,886 | 24,544
Tariff Revenue [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues | 23,386 | 22,369
Tariff Revenue [Member] | Consumption Charges [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues | 13,022 | 12,311
Tariff Revenue [Member] | Fixed Fees [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues | 9,266 | 9,320
Tariff Revenue [Member] | Service Charges [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues | 180 | 201
Tariff Revenue [Member] | DSIC [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues | 299 | 0
Tariff Revenue [Member] | Metered Wastewater Services [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues | 187 | 139
Tariff Revenue [Member] | Industrial Wastewater Services [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues | 432 | 398
Non-Tariff Revenue [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues | 2,060 | 1,828
Non-Tariff Revenue [Member] | Service Line Protection Plans [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues | 1,632 | 1,431
Non-Tariff Revenue [Member] | Contract Operations [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues | 253 | 267
Non-Tariff Revenue [Member] | Design and Installation [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues | 4 | 54
Non-Tariff Revenue [Member] | Inspection Fees [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues | $ 171 | $ 76

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- Definition Minimum number of days services invoiced in advance beginning of every month for customer, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The minimum number of days due for accounts receivable after invoicing from regulated contract customers, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The minimum number of days due for accounts receivable after invoicing from Service Line Protection Plans (SLP) customers, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (ee) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 4: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 5: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 924 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479941/924-10-S99-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -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 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 30 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-42 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-40 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-4 + Details
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