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, 2021		$ 8,532		$ 881		$ 104,989	$ 63,607	$ 178,009
Balance (in shares) at Dec. 31, 2021		8,532	[1],[2],[3]	881	[4]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 0		$ 0		0	4,483	4,483
Cash dividends declared
Common stock		0		0		0	(2,518)	(2,518)
Issuance of common stock
Dividend reinvestment plan		$ 2		$ 0		87	0	89
Dividend reinvestment plan (in shares)		2	[1],[2],[3]	0	[4]
Employee stock options and awards	[2]	$ 22		$ 0		475	0	497
Employee stock options and awards (in shares)	[2]	22	[1],[3]	0	[4]
Employee Retirement Plan	[3]	$ 0		$ 0		0	0	0
Employee Retirement Plan (in shares)	[3]	0	[1],[2]	0	[4]
Balance at Mar. 31, 2022		$ 8,556		$ 881		105,551	65,572	180,560
Balance (in shares) at Mar. 31, 2022		8,556	[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		$ 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	[2]	$ 0		$ 0		56	0	56
Employee stock options and awards (in shares)	[2]	0	[1],[3]	0	[4]
Employee Retirement Plan	[3]	$ 0		$ 0		0	0	0
Employee Retirement Plan (in shares)	[3]	0	[1],[2]	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]

[1] At March 31, 2023, and March 31, 2022, Class A Common Stock had 15,000,000 shares authorized.  For the same periods, shares issued, inclusive of treasury shares, were 8,651,976 and 8,585,947, respectively.

[2] 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 Common 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 March 31, 2023 and March 31, 2022, see Note 6-Stock Compensation Plans.

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

[4] At March 31, 2023, and March 31, 2022, Class B Common Stock had 1,040,000 shares authorized and 881,452 shares issued.