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INVESTMENTS CFG Stock Prices (Details) (Campofrio Food Group [Member], EUR €) | Jul. 28, 2013 | May 30, 2013 | Apr. 28, 2013 | Apr. 29, 2012 | Feb. 17, 2012 | May 05, 2011
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Campofrio Food Group [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equtiy Method Investment, Market Value Per Share in Euros | € 5.22 | € 5.88 | € 4.99 | € 6.30 | € 7.20 | € 9.27
Equity Method Investment, Carrying Value Per Share in Euros | € 7.65 |  | € 7.64 | € 7.70 | € 7.54 | € 7.93

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