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STATEMENTS OF INCOME (UNAUDITED) (Parenthetical) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Sep. 30, 2012
|
Sep. 30, 2011
|
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| Interest charges and financing costs | ||||
| Other financing costs | $ 721 | $ 763 | $ 2,243 | $ 2,188 |