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Note 3 - Earnings Per Share (Details) - Net Income Attributable to Participating Securities (Participating Securities [Member], USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
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Jun. 29, 2014 | Jun. 30, 2013 | Jun. 29, 2014 | Jun. 30, 2013
Participating Securities [Member] |  |  |  |
Note 3 - Earnings Per Share (Details) - Net Income Attributable to Participating Securities [Line Items] |  |  |  |
Net Income | $ 0.3 | $ 0.3 | $ 0.4 | $ 0.5

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