NET INCOME PER COMMON SHARE AND EQUITY PER COMMON SHARE (Details) - $ / shares		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	May 23, 2023
Shares used in computing basic and diluted net income per share [Abstract]
Weighted average common shares outstanding during the period for Basic computation (in shares)		10,294,000	10,018,000	9,462,000
Dilutive effect of employee stock options and awards (in shares)		2,000	4,000	19,000
Weighted average common shares outstanding during the period for Diluted computation (in shares)		10,296,000	10,022,000	9,481,000
Earnings Per Share [Abstract]
Equity per common share (in dollars per share)		$ 1.98	$ 1.67	$ 1.9
Class A Stock [Member]
Common Stock [Abstract]
Common stock, par value (in dollars per share)					$ 1
Common Stock [Member]
Earnings Per Share [Abstract]
Equity per common share (in dollars per share)		$ 23.24	$ 23	$ 19.86
Common Stock [Member] | Class A Stock [Member]
Common Stock [Abstract]
Common stock, shares authorized (in shares)		15,000,000	15,000,000	15,000,000
Common stock, shares issued (in shares)		9,418,871	9,404,311	8,621,415
Common stock, shares outstanding (in shares)		9,418,871	9,404,311	8,621,415
Common stock, par value (in dollars per share)		$ 1
Common stock, shares issued during period (in shares)	[1],[2],[3]		763,000
Common Stock [Member] | Class B Stock [Member]
Common Stock [Abstract]
Common stock, shares authorized (in shares)		1,040,000	1,040,000	1,040,000
Common stock, shares issued (in shares)		881,452	881,452	881,452
Common stock, shares outstanding (in shares)		881,452	881,452	881,452
Common stock, par value (in dollars per share)		$ 1
Stock Option [Member]
Common Stock [Abstract]
Shares excluded from calculations of diluted net income per share (in shares)		0	0	0
Restricted Stock [Member]
Common Stock [Abstract]
Shares excluded from calculations of diluted net income per share (in shares)		0	0	0

[1] Artesian Resources Corporation registered 200,000 shares of Class A Stock, subsequently adjusted for stock splits, available for purchase through the Company’s 401(k) retirement plan.

[2] At December 31, 2024, 2023, and 2022, Class A Stock had 15,000,000 shares authorized.  For the same periods, shares issued, inclusive of treasury shares, were 9,447,848, 9,433,288 and 8,650,392, respectively.

[3] Under the Equity Compensation Plan, effective December 9, 2015, Artesian Resources Corporation authorized up to 331,500 shares of Class A Stock for issuance of grants in forms of stock options, stock units, dividend equivalents and other stock-based awards, subject to adjustment in certain circumstances as discussed in the Plan. Includes stock compensation expense for the years ended December 31, 2024, 2023, and 2022, See Notes to Consolidated Financial Statements - Note 9-Stock Compensation Plans.