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NET INCOME (LOSS) PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2019
Earnings Per Share [Abstract] |
Schedule of adjusted net income and diluted common shares | Diluted common shares were calculated as follows:
| Thirteen weeks ended |  | Twenty-six weeks ended
(in thousands, except per share data) | June 30, 2019 | July 1, 2018 |  | June 30, 2019 | July 1, 2018
Net income | $ | 19,406 |  | $ | 17,732 |  |  | $ | 27,682 |  | $ | 26,487 |
Weighted average number of common shares used in basic net income per common share | 39,163 |  | 40,227 |  |  | 39,264 |  | 40,335 |
Dilutive effect of non-vested restricted stock | 391 |  | 242 |  |  | 355 |  | 241 |
Weighted average number of common shares used in diluted net income per common share | 39,554 |  | 40,469 |  |  | 39,619 |  | 40,576 |
Net income per common share: |  |  |  |  |
Basic | $ | 0.50 |  | $ | 0.44 |  |  | $ | 0.71 |  | $ | 0.66 |
Diluted | $ | 0.49 |  | $ | 0.44 |  |  | $ | 0.70 |  | $ | 0.65 |
Anti-dilutive shares | 246 |  | 254 |  |  | 336 |  | 218 |

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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://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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