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Note 10 - Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2018
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | For the Three Months Ended |  |  | For the Six Months Ended |
(in thousands, except per share amounts) |  | June 30 , 201 8 |  |  | July 1 , 201 7 |  |  | June 30 , 201 8 |  |  | July 1 , 201 7 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income as reported |  | $ | 42,326 |  |  | $ | 48,638 |  |  | $ | 78,354 |  |  | $ | 87,530 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 25,004 |  |  |  | 22,822 |  |  |  | 24,671 |  |  |  | 22,785 |
Effect of dilutive securities |  |  | 397 |  |  |  | 201 |  |  |  | 415 |  |  |  | 220 |
Diluted |  |  | 25,401 |  |  |  | 23,023 |  |  |  | 25,086 |  |  |  | 23,005 |
Earnings Per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic earnings per share |  | $ | 1.69 |  |  | $ | 2.13 |  |  | $ | 3.18 |  |  | $ | 3.84 |
Diluted earnings per share |  | $ | 1.67 |  |  | $ | 2.11 |  |  | $ | 3.12 |  |  | $ | 3.80 |

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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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