v3.26.1
Business Segment Data - Schedule of Segment Transactions (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Operating Revenues:              
Operating Revenues $ 56,357   $ 49,323   $ 105,071 $ 93,624  
Purchased Water:              
Consolidated Purchased Water 1,923   2,004   3,829 3,882  
Other Operations and Maintenance Expenses:              
Consolidated Other Operations and Maintenance Expenses 23,476   21,062   44,582 40,293  
Other Taxes:              
Consolidated Other Taxes 5,968   5,642   11,532 10,750  
Depreciation:              
Depreciation 6,761   6,703   13,797 13,230  
Operating Income:              
Operating Income 18,229   13,912   31,331 25,469  
Other Income:              
Other Income 2,348   1,898   4,351 3,696  
Income Taxes:              
Consolidated Income Taxes 1,789   1,409   3,074 2,571  
Net Income:              
Consolidated Net Income 14,772 $ 10,605 10,778 $ 9,479 25,377 20,258  
Capital Expenditures:              
Total Capital Expenditures 32,827   31,724   53,468 50,635  
ASSETS              
Consolidated Assets 1,423,482       1,423,482   $ 1,365,737
Regulated              
Other Taxes:              
Consolidated Other Taxes 5,895   5,576   11,391 10,626  
Non – Regulated              
Other Taxes:              
Consolidated Other Taxes 73   66   141 124  
Operating Segments              
Operating Revenues:              
Operating Revenues 56,696   49,518   105,565 93,967  
Purchased Water:              
Consolidated Purchased Water 2,135   2,078   4,076 3,985  
Other Operations and Maintenance Expenses:              
Consolidated Other Operations and Maintenance Expenses 23,603   21,183   44,829 40,533  
Other Income:              
Other Income 2,557   2,057   4,760 4,014  
ASSETS              
Consolidated Assets 1,446,559       1,446,559   1,386,467
Operating Segments | Regulated              
Operating Revenues:              
Operating Revenues 53,461   46,267   99,240 87,763  
Purchased Water:              
Consolidated Purchased Water 2,135   2,078   4,076 3,985  
Other Operations and Maintenance Expenses:              
Consolidated Other Operations and Maintenance Expenses 21,413   19,152   40,402 36,646  
Depreciation:              
Depreciation 6,686   6,638   13,649 13,102  
Operating Income:              
Operating Income 17,459   12,943   29,970 23,644  
Other Income:              
Other Income 2,539   2,019   4,717 3,921  
Income Taxes:              
Consolidated Income Taxes 1,526   1,088   2,599 1,960  
Net Income:              
Consolidated Net Income 14,247   10,092   24,448 18,951  
Capital Expenditures:              
Total Capital Expenditures 32,750   31,696   53,324 50,549  
ASSETS              
Consolidated Assets 1,437,730       1,437,730   1,377,391
Operating Segments | Non – Regulated              
Operating Revenues:              
Operating Revenues 3,235   3,251   6,325 6,204  
Purchased Water:              
Consolidated Purchased Water 0   0   0 0  
Other Operations and Maintenance Expenses:              
Consolidated Other Operations and Maintenance Expenses 2,190   2,031   4,427 3,887  
Depreciation:              
Depreciation 75   65   148 128  
Operating Income:              
Operating Income 770   969   1,361 1,825  
Other Income:              
Other Income 18   38   43 93  
Income Taxes:              
Consolidated Income Taxes 263   321   475 611  
Net Income:              
Consolidated Net Income 525   686   929 1,307  
Capital Expenditures:              
Total Capital Expenditures 77   28   144 86  
ASSETS              
Consolidated Assets 8,829       8,829   9,076
Inter-segment Elimination              
Operating Revenues:              
Operating Revenues (339)   (195)   (494) (343)  
Purchased Water:              
Consolidated Purchased Water (212)   (74)   (247) (103)  
Other Operations and Maintenance Expenses:              
Consolidated Other Operations and Maintenance Expenses (127)   (121)   (247) (240)  
Other Income:              
Other Income (209)   $ (159)   (409) $ (318)  
ASSETS              
Consolidated Assets $ (23,077)       $ (23,077)   $ (20,730)