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Note 10 - Per Share Data (Tables) | 9 Months Ended
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Sep. 26, 2020
Notes Tables |
Schedule of Weighted Average Number of Shares [Table Text Block] |
|  | Thirteen Week Periods Ended |  |  | Thirty-Nine Week Periods Ended |
|  | September 26, 2020 |  |  | September 28, 2019 |  |  | September 26, 2020 |  |  | September 28, 2019 |
Basic weighted average shares outstanding |  |  | 11,444,697 |  |  |  | 12,955,198 |  |  |  | 12,393,058 |  |  |  | 12,897,303 |
Dilutive effect of outstanding restricted share units |  |  | 45,411 |  |  |  | 63,416 |  |  |  | 34,181 |  |  |  | 53,628 |
Weighted average dilutive shares outstanding |  |  | 11,490,108 |  |  |  | 13,018,614 |  |  |  | 12,427,739 |  |  |  | 12,950,931 |
Unissued Shares of Common Stock [Table Text Block] |
|  | September 26, 2020 |  |  | December 28, 2019 |
Time-based restricted stock units outstanding |  |  | 454,386 |  |  |  | 151,725 |
Performance-based restricted stock units outstanding |  |  | - |  |  |  | 240,000 |
Future grants of options or shares |  |  | 5,573 |  |  |  | 268,326 |
Shares reserved for employee stock purchase plan |  |  | 149,894 |  |  |  | 267,877 |
Total |  |  | 609,853 |  |  |  | 927,928 |

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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://fasb.org/us-gaap/role/ref/legacyRef -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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