CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating revenues
Total Operating Revenues	$ 107,952	$ 98,861	$ 98,897
Operating expenses
Utility operating expenses	49,796	46,205	43,772
Non-utility operating expenses	4,743	4,428	6,850
Depreciation and amortization	13,629	13,335	12,620
State and federal income taxes expense (benefit)
Current	6,737	2,962	4,285
Deferred	578	3,386	1,593
Property and other taxes	6,318	6,099	5,871
Total Operating Expenses	81,801	76,415	74,991
Operating income	26,151	22,446	23,906
Other income
Allowance for funds used during construction (AFUDC)	1,643	2,002	1,329
Miscellaneous income	1,379	1,407	1,265
Total other income	3,022	3,409	2,594
Income before interest charges	29,173	25,855	26,500
Interest charges	8,779	9,156	8,502
Net income applicable to common stock	$ 20,394	$ 16,699	$ 17,998
Net Income per common share:
Basic (in dollars per share)	$ 1.98	$ 1.67	$ 1.9
Diluted (in dollars per share)	$ 1.98	$ 1.67	$ 1.9
Weighted average common shares outstanding:
Basic (in shares)	10,294	10,018	9,462
Diluted (in shares)	10,296	10,022	9,481
Cash dividends per share of common stock (in dollars per share)	$ 1.18	$ 1.14	$ 1.09
Water Sales [Member]
Operating revenues
Total Operating Revenues	$ 88,079	$ 80,033	$ 78,318
Other Utility Operating Revenue [Member]
Operating revenues
Total Operating Revenues	13,129	12,195	11,506
Non-Utility Operating Revenue [Member]
Operating revenues
Total Operating Revenues	$ 6,744	$ 6,633	$ 9,073