CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands		Common Stock [Member] Common Shares Class A Non-Voting [Member]		Common Stock [Member] Common Shares Class B Voting [Member]		Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2022		$ 8,621		$ 881		$ 107,143	$ 71,286	$ 187,931
Balance (in shares) at Dec. 31, 2022		8,621	[1],[2],[3]	881	[4]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 0		$ 0		0	3,705	3,705
Cash dividends declared
Common stock		0		0		0	(2,646)	(2,646)
Issuance of common stock
Dividend reinvestment plan		$ 2		$ 0		91	0	93
Dividend reinvestment plan (in shares)		2	[1],[2],[3]	0	[4]
Employee stock options and awards	[3]	$ 0		$ 0		56	0	56
Employee stock options and awards (in shares)	[3]	0	[1],[2]	0	[4]
Employee Retirement Plan	[1]	$ 0		$ 0		0	0	0
Employee Retirement Plan (in shares)	[1]	0	[2],[3]	0	[4]
Balance at Mar. 31, 2023		$ 8,623		$ 881		107,290	72,345	189,139
Balance (in shares) at Mar. 31, 2023		8,623	[1],[2],[3]	881	[4]
Balance at Dec. 31, 2022		$ 8,621		$ 881		107,143	71,286	187,931
Balance (in shares) at Dec. 31, 2022		8,621	[1],[2],[3]	881	[4]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income								8,148
Balance at Jun. 30, 2023		$ 9,394		$ 881		142,910	74,088	227,273
Balance (in shares) at Jun. 30, 2023		9,394	[1],[2],[3]	881	[4]
Balance at Mar. 31, 2023		$ 8,623		$ 881		107,290	72,345	189,139
Balance (in shares) at Mar. 31, 2023		8,623	[1],[2],[3]	881	[4]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 0		$ 0		0	4,443	4,443
Cash dividends declared
Common stock		0		0		0	(2,700)	(2,700)
Issuance of common stock
Public offering, net of costs		$ 764		$ 0		35,467	0	36,231
Public offering, net of costs (in shares)		764	[1],[2],[3]	0	[4]
Dividend reinvestment plan		$ 2		$ 0		98	0	100
Dividend reinvestment plan (in shares)		2	[1],[2],[3]	0	[4]
Employee stock options and awards	[3]	$ 5		$ 0		55	0	60
Employee stock options and awards (in shares)	[3]	5	[1],[2]	0	[4]
Employee Retirement Plan	[1]	$ 0		$ 0		0	0	0
Employee Retirement Plan (in shares)	[1]	0	[2],[3]	0	[4]
Balance at Jun. 30, 2023		$ 9,394		$ 881		142,910	74,088	227,273
Balance (in shares) at Jun. 30, 2023		9,394	[1],[2],[3]	881	[4]
Balance at Dec. 31, 2023		$ 9,404		$ 881		143,369	76,743	230,397
Balance (in shares) at Dec. 31, 2023		9,404	[1],[2],[3]	881	[4]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 0		$ 0		0	4,411	4,411
Cash dividends declared
Common stock		0		0		0	(2,980)	(2,980)
Issuance of common stock
Dividend reinvestment plan		$ 3		$ 0		87	0	90
Dividend reinvestment plan (in shares)		3	[1],[2],[3]	0	[4]
Employee stock options and awards	[3]	$ 0		$ 0		68	0	68
Employee stock options and awards (in shares)	[3]	0	[1],[2]	0	[4]
Employee Retirement Plan	[1]	$ 0		$ 0		0	0	0
Employee Retirement Plan (in shares)	[1]	0	[2],[3]	0	[4]
Balance at Mar. 31, 2024		$ 9,407		$ 881		143,524	78,174	231,986
Balance (in shares) at Mar. 31, 2024		9,407	[1],[2],[3]	881	[4]
Balance at Dec. 31, 2023		$ 9,404		$ 881		143,369	76,743	230,397
Balance (in shares) at Dec. 31, 2023		9,404	[1],[2],[3]	881	[4]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income								9,736
Balance at Jun. 30, 2024		$ 9,415		$ 881		143,663	80,457	234,416
Balance (in shares) at Jun. 30, 2024		9,415	[1],[2],[3]	881	[4]
Balance at Mar. 31, 2024		$ 9,407		$ 881		143,524	78,174	231,986
Balance (in shares) at Mar. 31, 2024		9,407	[1],[2],[3]	881	[4]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 0		$ 0		0	5,325	5,325
Cash dividends declared
Common stock		0		0		0	(3,042)	(3,042)
Issuance of common stock
Dividend reinvestment plan	[3]	$ 3		$ 0		87	0	90
Dividend reinvestment plan (in shares)	[3]	3	[1],[2]	0	[4]
Employee stock options and awards	[3]	$ 5		$ 0		52	0	57
Employee stock options and awards (in shares)	[3]	5	[1],[2]	0	[4]
Employee Retirement Plan	[1]	$ 0		$ 0		0	0	0
Employee Retirement Plan (in shares)		0	[1],[2],[3]	0	[4]
Balance at Jun. 30, 2024		$ 9,415		$ 881		$ 143,663	$ 80,457	$ 234,416
Balance (in shares) at Jun. 30, 2024		9,415	[1],[2],[3]	881	[4]

[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 June 30, 2024 and June 30, 2023, Class A Stock had 15,000,000 shares authorized.  For the same periods, shares issued, inclusive of treasury shares, were 9,443,071 and 9,422,321, respectively.

[3] Under the Equity Compensation Plan, effective December 9, 2015, or the 2015 Plan, Artesian Resources Corporation authorized up to 331,500 shares of Class A Stock for issuance of grants in the form of stock options, stock units, dividend equivalents and other stock-based awards, subject to adjustment in certain circumstances as discussed in the 2015 Plan. Includes stock compensation expense for June 30, 2024, and June 30, 2023.  See Note 8 - Stock Compensation Plans.

[4] At June 30, 2024 and June 30, 2023, Class B Stock had 1,040,000 shares authorized and 881,452 shares issued.