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Note 13 - Quaterly Financial Data (Details) - Quaterly Financial Data (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Apr. 30, 2014 | Jan. 31, 2014 | Oct. 31, 2013 | Jul. 31, 2013 | Apr. 30, 2013 | Jan. 31, 2013 | Oct. 31, 2012 | Jul. 31, 2012 | Apr. 30, 2012 | Jan. 31, 2012 | Oct. 31, 2011 | Jul. 31, 2011 | Oct. 31, 2013 | Jan. 31, 2014 | Apr. 30, 2014 | Apr. 30, 2013 | Apr. 30, 2012
Total revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ 1,919,566 |  | $ 1,790,055 |  | $ 2,015,885 |  | $ 2,114,749 |  | $ 1,808,529 |  | $ 1,662,365 |  | $ 1,911,644 |  | $ 1,868,302 |  | $ 1,752,504 |  | $ 1,578,950 |  | $ 1,782,518 |  | $ 1,873,832 |  |  |  | $ 7,840,255 |  | $ 7,250,840 |  | $ 6,987,804 |
Gross profit* |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross profit | 283,620 | [1] | 276,690 | [1] | 319,285 | [1] | 342,421 | [1] | 263,666 | [1] | 246,870 | [1] | 276,458 | [1] | 284,075 | [1] | 242,605 | [1] | 227,840 | [1] | 262,918 | [1] | 266,782 | [1] |  |  | 1,222,016 | [1] | 1,071,069 | [1] | 1,000,145 | [1]
Net income | 20,932 |  | 12,653 |  | 39,430 |  | 53,795 |  | 21,604 |  | 13,757 |  | 31,146 |  | 37,307 |  | 21,509 |  | 16,162 |  | 37,632 |  | 39,391 |  | 93,225 | 105,878 | 126,820 |  | 103,814 |  | 114,694 |
Income per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic (in Dollars per share) | $ 0.54 |  | $ 0.33 |  | $ 1.03 |  | $ 1.40 |  | $ 0.56 |  | $ 0.36 |  | $ 0.81 |  | $ 0.98 |  | $ 0.56 |  | $ 0.42 |  | $ 0.99 |  | $ 1.04 |  | $ 2.43 | $ 2.76 | $ 3.30 |  | $ 2.71 |  | $ 3.01 |
Diluted (in Dollars per share) | $ 0.54 |  | $ 0.33 |  | $ 1.01 |  | $ 1.39 |  | $ 0.56 |  | $ 0.36 |  | $ 0.81 |  | $ 0.97 |  | $ 0.56 |  | $ 0.42 |  | $ 0.98 |  | $ 1.03 |  | $ 2.40 | $ 2.73 | $ 3.26 |  | $ 2.69 |  | $ 2.99 |
Gasoline [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue | 1,366,952 |  | 1,255,774 |  | 1,416,980 |  | 1,514,874 |  | 1,319,371 |  | 1,185,640 |  | 1,393,476 |  | 1,330,670 |  | 1,284,669 |  | 1,141,230 |  | 1,288,498 |  | 1,377,914 |  |  |  | 5,554,580 |  | 5,229,157 |  | 5,092,311 |
Gross profit* |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross profit | 52,937 | [1] | 55,892 | [1] | 67,816 | [1] | 91,227 | [1] | 61,561 | [1] | 49,186 | [1] | 54,779 | [1] | 55,896 | [1] | 46,736 | [1] | 48,270 | [1] | 62,688 | [1] | 65,320 | [1] |  |  | 267,872 | [1] | 221,422 | [1] | 223,014 | [1]
Grocery and Other Merchandise [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue | 378,251 |  | 364,846 |  | 416,552 |  | 423,585 |  | 340,263 |  | 329,657 |  | 362,662 |  | 386,129 |  | 330,809 |  | 311,199 |  | 357,816 |  | 365,171 |  |  |  | 1,583,234 |  | 1,418,711 |  | 1,364,995 |
Gross profit* |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross profit | 121,387 | [1] | 113,429 | [1] | 134,708 | [1] | 138,412 | [1] | 107,963 | [1] | 104,660 | [1] | 121,206 | [1] | 128,834 | [1] | 109,196 | [1] | 99,099 | [1] | 116,221 | [1] | 118,729 | [1] |  |  | 507,936 | [1] | 462,663 | [1] | 443,245 | [1]
Prepared Food and Fountain [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue | 162,977 |  | 158,200 |  | 171,751 |  | 166,248 |  | 138,642 |  | 137,033 |  | 146,540 |  | 142,709 |  | 128,281 |  | 118,750 |  | 128,838 |  | 123,483 |  |  |  | 659,176 |  | 564,924 |  | 499,712 |
Gross profit* |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross profit | 97,924 | [1] | 96,147 | [1] | 106,171 | [1] | 102,754 | [1] | 83,902 | [1] | 83,011 | [1] | 91,515 | [1] | 90,565 | [1] | 77,944 | [1] | 72,714 | [1] | 76,658 | [1] | 75,843 | [1] |  |  | 402,996 | [1] | 348,993 | [1] | 303,159 | [1]
Other Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue | 11,386 |  | 11,235 |  | 10,602 |  | 10,042 |  | 10,253 |  | 10,035 |  | 8,966 |  | 8,794 |  | 8,745 |  | 7,771 |  | 7,366 |  | 6,904 |  |  |  | 43,265 |  | 38,048 |  | 30,786 |
Gross profit* |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross profit | $ 11,372 | [1] | $ 11,222 | [1] | $ 10,590 | [1] | $ 10,028 | [1] | $ 10,240 | [1] | $ 10,013 | [1] | $ 8,958 | [1] | $ 8,780 | [1] | $ 8,729 | [1] | $ 7,757 | [1] | $ 7,351 | [1] | $ 6,890 | [1] |  |  | $ 43,212 | [1] | $ 37,991 | [1] | $ 30,727 | [1]
[1] | Gross profit is given before charge for depreciation and amortization and credit card fees. Fiscal 2012 quarterly data was included for comparative purposes and to describe the impact of the immaterial error on Q3 and Q4 of 2012 as discussed in footnote 2, Correction of Immaterial Errors.

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