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Note 10 - Per Share Data (Tables) | 9 Months Ended
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Sep. 27, 2014
Earnings Per Share [Abstract] |
Schedule of Weighted Average Number of Shares [Table Text Block] |
|  | Thirteen Week Periods Ended |  |  | Thirty-Nine Week Periods Ended |
|  | September 27, 2014 |  |  | September 28, 2013 |  |  | September 27, 2014 |  |  | September 28, 2013 |
Basic weighted average shares outstanding |  |  | 12,540,955 |  |  |  | 12,364,018 |  |  |  | 12,494,793 |  |  |  | 12,333,318 |
Dilutive effect of outstanding stock options |  |  | 217,850 |  |  |  | 123,400 |  |  |  | 198,036 |  |  |  | 98,143 |
Weighted average dilutive shares outstanding |  |  | 12,758,805 |  |  |  | 12,487,418 |  |  |  | 12,692,829 |  |  |  | 12,431,461 |
Unissued Shares of Common Stock [Table Text Block] |
|  | September 27, 2014 |  |  | December 28, 2013 |
Exercise of options outstanding |  |  | 222,900 |  |  |  | 276,900 |
Restricted stock awards outstanding |  |  | 300,000 |  |  |  | 300,000 |
Future grants of options or shares |  |  | 19,100 |  |  |  | 34,100 |
Shares reserved for employee stock purchase plan |  |  | 122,484 |  |  |  | 189,576 |
Total |  |  | 664,484 |  |  |  | 800,576 |

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- Definition The tabular disclosure for unissued shares of common stock. + References No definition available. + Details
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- Details
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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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