REGULATORY PROCEEDINGS (Details) - USD ($) $ in Millions			12 Months Ended
	Apr. 28, 2023	Nov. 20, 2020	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Water and Wastewater Rates [Abstract]
Percentage of DSIC rate upon implementation of temporary increase in base rates charged to customers	15.16%
Percentage of revenue increase requested for new rates	22.66%
Annual revenue performance obligation	$ 16.7
Percentage of distribution system infrastructure charge	7.50%
Percentage of DSIC rate upon implementation of temporary increase in base rates charged to customers	15.16%
Percentage of temporary rates permitted	15.00%
Amount of temporary rates permitted	$ 2.5
Period permitted to implement temporary rates			60 days
Term of statutory resolve timeframe			7 months
Other Proceedings [Abstract]
Cumulative DSIC Rate		7.50%
Net Eligible Plant Improvements - Cumulative Dollars		$ 43.1
Maximum [Member]
Water and Wastewater Rates [Abstract]
Percentage of gross water sales in temporary rate increase placed into effect until new rates approved	15.00%
Delaware [Member]
Water and Wastewater Rates [Abstract]
Temporary annual rate increase subject to 15% gross water sales limitation			$ 2.5
Percentage of DSIC rate upon implementation of temporary increase in base rates charged to customers			0.00%
Percentage of gross water sales			15.00%
Period to complete rate case by law			7 months
Percentage of rate relief allowed should a rate case not complete			15.00%
Percentage of DSIC rate upon implementation of temporary increase in base rates charged to customers			0.00%
Other Proceedings [Abstract]
Distribution System Improvement Charge rate increase applied between base rate filings			7.50%
Distribution System Improvement Charge rate increase within a 12-month period			5.00%
Artesian Water [Member]
Other Proceedings [Abstract]
Revenue earned in DSIC rate increases			$ 4.7	$ 5.1	$ 5.1