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Note 15 - Incentive and Stock Option Plans (Details) - Summary of Non-vested Restricted Stock (USD $)
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12 Months Ended |
|---|---|
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Dec. 28, 2014
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| Summary of Non-vested Restricted Stock [Abstract] | |
| Non-vested shares at beginning of year | 625,945 |
| Non-vested shares at beginning of year | $ 7.04 |
| Granted | 275,794 |
| Granted | $ 12.46 |
| Vested | (332,464) |
| Vested | $ 5.72 |
| Non-vested shares at end of year | 569,275 |
| Non-vested shares at end of year | $ 10.46 |