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Total intrinsic value of options (Details) (USD $) | Jun. 30, 2013 | Jun. 24, 2012
--- | --- | ---
Total intrinsic value of options |  |
Weighted-average fair value of options granted during the year | $ 1.29 | $ 1.90
Total intrinsic value of options exercised |  | $ 38,320
Total intrinsic value of options outstanding in millions | 2.7 |
Total intrinsic value of options exercisable in millions | 1.5 |

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