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Total intrinsic value of options (Details) (USD $) | Jun. 29, 2014 | Jun. 30, 2013
--- | --- | ---
Total intrinsic value of options |  |
Weighted-average fair value of options granted during the year | $ 3.64 | $ 1.29
Total intrinsic value of options exercised | $ 82,845 |
Total intrinsic value of options outstanding | 3,100,000 |
Total intrinsic value of options exercisable | 1,200,000 |

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