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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Operating revenues    
Water sales $ 15,044 $ 12,916
Other utility operating revenue 735 746
Non-utility revenue 919 1,095
Total Operating Revenues 16,698 14,757
Operating expenses    
Utility operating expenses 7,929 8,078
Non-utility operating expenses 498 940
Depreciation and amortization 1,960 1,810
State and federal income taxes 1,688 694
Property and other taxes 1,033 1,016
Total Operating Expenses 13,108 12,538
Operating income 3,590 2,219
Other income (expense), net    
Allowance for funds used during construction (AFUDC) 34 35
Miscellaneous 653 597
Income before interest charges 4,277 2,851
Interest charges 1,772 1,842
Net income $ 2,505 $ 1,009
Income per common share:    
Basic (in dollars per share) $ 0.29 $ 0.13
Diluted (in dollars per share) $ 0.29 $ 0.13
Weighted average common shares outstanding    
Basic (in shares) 8,626 7,651
Diluted (in shares) 8,663 7,699
Cash dividend per common share $ 0.1930 $ 0.1892