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Revenue (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
USD ($)
Sep. 30, 2022
USD ($)
Sep. 30, 2023
USD ($)
Municipality
Sep. 30, 2022
USD ($)
Revenue [Abstract]        
Revenue from contracts with customers $ 18,643 $ 15,689 $ 52,560 $ 44,571
Rents from regulated property 124 122 375 379
Total operating revenue 18,767 15,811 $ 52,935 44,950
Utility Service [Member]        
Revenue [Abstract]        
Number of days for customer to make payment after being invoiced     20 days  
Water Utility Service [Member] | Residential [Member]        
Revenue [Abstract]        
Revenue from contracts with customers 10,505 9,282 $ 30,033 26,548
Water Utility Service [Member] | Commercial and Industrial [Member]        
Revenue [Abstract]        
Revenue from contracts with customers 5,244 4,208 14,341 11,692
Water Utility Service [Member] | Fire Protection [Member]        
Revenue [Abstract]        
Revenue from contracts with customers 1,040 856 3,022 2,528
Wastewater Utility Service [Member] | Residential [Member]        
Revenue [Abstract]        
Revenue from contracts with customers 1,458 976 3,998 2,830
Wastewater Utility Service [Member] | Commercial and Industrial [Member]        
Revenue [Abstract]        
Revenue from contracts with customers 255 209 743 434
Billing and Revenue Collection Services [Member]        
Revenue [Abstract]        
Revenue from contracts with customers 115 149 $ 357 363
Number of municipalities within the service territory provided service | Municipality     2  
Number of days for customer to make payment after being invoiced     30 days  
Collection Services [Member]        
Revenue [Abstract]        
Revenue from contracts with customers 12 3 $ 28 151
Number of days for customer to make payment after being invoiced     30 days  
Other Revenue [Member]        
Revenue [Abstract]        
Revenue from contracts with customers $ 14 $ 6 $ 38 $ 25