CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Operating revenues
Water sales	$ 57,564	$ 56,685	$ 53,871
Other utility operating revenue	3,302	2,973	2,208
Non-utility operating revenue	4,204	5,227	4,833
Total operating revenues	65,070	64,885	60,912
Operating expenses
Utility operating expenses	32,300	30,934	28,965
Non-utility operating expenses	3,148	3,780	3,403
Depreciation and amortization	7,410	7,032	6,556
State and federal income
Current	106	950	116
Deferred	4,548	4,132	4,744
Property and other	3,822	3,789	3,483
Total operating expenses	51,334	50,617	47,267
Operating income	13,736	14,268	13,645
Other income, net
Allowance for funds used during construction (AFUDC)	163	183	413
Miscellaneous	136	464	422
Total other income	299	647	835
Income before interest charges	14,035	14,915	14,480
Interest charges	7,289	7,295	7,218
Net income applicable to common stock	$ 6,746	$ 7,620	$ 7,262
Income per common share:
Basic (in dollars per share)	$ 0.83	$ 1.01	$ 0.97
Diluted (in dollars per share)	$ 0.83	$ 1.00	$ 0.97
Weighted average common shares outstanding:
Basic (in shares)	8,122	7,557	7,454
Diluted (in shares)	8,160	7,618	7,512
Cash dividends per share of common stock (in dollars per share)	$ 0.7626	$ 0.7529	$ 0.7225