REGULATORY PROCEEDINGS (Details) - USD ($) $ in Millions				12 Months Ended
	Nov. 20, 2020	May 29, 2020	Nov. 15, 2019	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Proceedings [Abstract]
Cumulative DSIC Rate	7.50%	7.50%	7.50%
Net Eligible Plant Improvements - Cumulative Dollars	$ 43.1	$ 43.1	$ 43.1
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%
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				$ 5.1	$ 5.1	$ 5.0