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Note 10 - Per Share Data (Tables) | 12 Months Ended
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Dec. 31, 2022
Notes Tables |
Schedule of Weighted Average Number of Shares [Table Text Block] |
|  | Fiscal Years Ended |
|  | December 31, 2022 |  |  | January 1, 2022 |  |  | January 2, 2021 |
Basic weighted average shares outstanding |  |  | 10,051,688 |  |  |  | 11,035,361 |  |  |  | 12,152,042 |
Dilutive effect of outstanding restricted share awards |  |  | 390,488 |  |  |  | 589,740 |  |  |  | - |
Weighted average dilutive shares outstanding |  |  | 10,442,176 |  |  |  | 11,625,101 |  |  |  | 12,152,042 |
Unissued Shares of Common Stock [Table Text Block] |
|  | December 31, 2022 |  |  | January 1, 2022 |  |  | January 2, 2021 |
Time-based restricted stock awards outstanding |  |  | 274,939 |  |  |  | 420,628 |  |  |  | 459,805 |
Unvested subscription restricted share awards |  |  | - |  |  |  | - |  |  |  | 250,000 |
Performance-based restricted stock awards outstanding |  |  | 225,000 |  |  |  | 125,000 |  |  |  | - |
Future grants of options or shares |  |  | 890,682 |  |  |  | 107,924 |  |  |  | 520,929 |
Shares reserved for employee stock purchase plan |  |  | 364,231 |  |  |  | 448,110 |  |  |  | 149,894 |
Total |  |  | 1,754,852 |  |  |  | 1,101,662 |  |  |  | 1,380,628 |

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