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Note 10 - Net Income Per Share (Tables) | 12 Months Ended
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Dec. 30, 2017
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | 2017 |  |  | 2016 |  |  | 2015 |
NUMERATOR: |  |  |  |  |  |  |  |  |  |  |  |
Net income before allocation of earnings to participating securities |  | $ | 7,916 |  |  | $ | 1,377 |  |  | $ | 27,345 |
Less: Earnings allocated to participating securities |  |  | 96 |  |  |  | 29 |  |  |  | 520 |
Net income |  | $ | 7,820 |  |  | $ | 1,348 |  |  | $ | 26,825 |
DENOMINATOR: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of common shares outstanding - basic |  |  | 15,572,045 |  |  |  | 15,442,086 |  |  |  | 16,642,269 |
Dilutive effect of share-based awards: |  |  | 185,015 |  |  |  | 180,187 |  |  |  | 225,087 |
Weighted average number of common shares outstanding - dilutive |  |  | 15,757,060 |  |  |  | 15,622,273 |  |  |  | 16,867,356 |
Basic income per common share attributable to Build-A-Bear Workshop, Inc. stockholders |  | $ | 0.50 |  |  | $ | 0.09 |  |  | $ | 1.61 |
Diluted income per common share attributable to Build-A-Bear Workshop, Inc. stockholders |  | $ | 0.50 |  |  | $ | 0.09 |  |  | $ | 1.59 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + 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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