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Revenue (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) Municipality	Mar. 31, 2022 USD ($)
Revenue [Abstract]
Revenue from contracts with customers	$ 15,273	$ 14,112
Rents from regulated property	128	128
Total operating revenue	$ 15,401	14,240
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	$ 8,888	8,447
Water Utility Service [Member] | Commercial and Industrial [Member]
Revenue [Abstract]
Revenue from contracts with customers	4,004	3,588
Water Utility Service [Member] | Fire Protection [Member]
Revenue [Abstract]
Revenue from contracts with customers	932	836
Wastewater Utility Service [Member] | Residential [Member]
Revenue [Abstract]
Revenue from contracts with customers	1,084	929
Wastewater Utility Service [Member] | Commercial and Industrial [Member]
Revenue [Abstract]
Revenue from contracts with customers	221	109
Billing and Revenue Collection Services [Member]
Revenue [Abstract]
Revenue from contracts with customers	$ 126	130
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	$ 7	59
Number of days for customer to make payment after being invoiced	30 days
Other Revenue [Member]
Revenue [Abstract]
Revenue from contracts with customers	$ 11	$ 14

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