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Revenue (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) Municipality	Dec. 31, 2020 USD ($)
Revenue [Abstract]
Revenue from contracts with customers	$ 54,568	$ 53,296
Rents from regulated property	551	556
Total operating revenue	$ 55,119	53,852
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	$ 33,986	33,987
Water Utility Service [Member] | Commercial and Industrial [Member]
Revenue [Abstract]
Revenue from contracts with customers	14,575	13,764
Water Utility Service [Member] | Fire Protection [Member]
Revenue [Abstract]
Revenue from contracts with customers	3,247	3,191
Wastewater Utility Service [Member] | Residential [Member]
Revenue [Abstract]
Revenue from contracts with customers	1,899	1,746
Wastewater Utility Service [Member] | Commercial and Industrial [Member]
Revenue [Abstract]
Revenue from contracts with customers	317	304
Billing and Revenue Collection Services [Member]
Revenue [Abstract]
Revenue from contracts with customers	$ 481	266
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	$ 26	15
Number of days for customer to make payment after being invoiced	30 days
Other Revenue [Member]
Revenue [Abstract]
Revenue from contracts with customers	$ 37	$ 23

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