CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating revenues
Total Operating Revenues	$ 98,861	$ 98,897	$ 90,859
Operating expenses
Utility operating expenses	46,205	43,772	41,414
Non-utility operating expenses	4,428	6,850	3,942
Depreciation and amortization	13,335	12,620	11,885
State and federal income taxes expense (benefit)
Current	2,962	4,285	3,360
Deferred	3,386	1,593	2,377
Property and other taxes	6,099	5,871	5,587
Total Operating Expenses	76,415	74,991	68,565
Operating income	22,446	23,906	22,294
Other income
Allowance for funds used during construction (AFUDC)	2,002	1,329	823
Miscellaneous (expense) income	1,407	1,265	1,302
Total other income	3,409	2,594	2,125
Income before interest charges	25,855	26,500	24,419
Interest charges	9,156	8,502	7,592
Net income applicable to common stock	$ 16,699	$ 17,998	$ 16,827
Net Income per common share:
Basic (in dollars per share)	$ 1.67	$ 1.9	$ 1.79
Diluted (in dollars per share)	$ 1.67	$ 1.9	$ 1.79
Weighted average common shares outstanding:
Basic (in shares)	10,018	9,462	9,394
Diluted (in shares)	10,022	9,481	9,426
Cash dividends per share of common stock (in dollars per share)	$ 1.14	$ 1.09	$ 1.05
Water Sales [Member]
Operating revenues
Total Operating Revenues	$ 80,033	$ 78,318	$ 77,821
Other Utility Operating Revenue [Member]
Operating revenues
Total Operating Revenues	12,195	11,506	7,195
Non-Utility Operating Revenue [Member]
Operating revenues
Total Operating Revenues	$ 6,633	$ 9,073	$ 5,843