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Note 11 - Accumulated Other Comprehensive Income | 9 Months Ended
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Sep. 30, 2013
Accumulated Other Comprehensive Income [Abstract] |
Accumulated Other Comprehensive Income [Text Block] | Note 11. Accumulated Other Comprehensive Income AOCI is comprised of net income and other adjustments, including changes in the fair value of certain derivative financial instruments qualifying as cash flow hedges. The following tables summarize the change in the components of our AOCI balance for the periods presented (in thousands; presented net of tax):
Details about AOCI Components |  | Amount Reclassified from AOCI for the three months ended September 30, 2013 |  |  | Amount Reclassified from AOCI for the nine months ended September 30, 2013 |  | Affected Line Item in the Statement of Operations
Gains on cash flow hedges |  |  |  |  |  |  |  |  |
Commodity derivative contracts |  | $ | 310 |  |  | $ | 309 |  | Fuel expense
|  |  | 119 |  |  |  | 119 |  | Income tax expense
|  | $ | 191 |  |  | $ | 190 |  | Net of tax

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