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Note 10 - Earnings Per Share | 6 Months Ended
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Jun. 30, 2018
Notes to Financial Statements |
Earnings Per Share [Text Block] | 10 . Earnings Per Share The following table sets forth the computation of basic and diluted earnings per share:
|  | 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 |
Potential shares of common stock relating to stock options excluded from the earnings per share calculation because their effect would be anti-dilutive were 47,849 and 46,100 for the three months ended June 30, 2018 and July 1, 2017, respectively, and 23,659 and 21,896 for the six months ended June 30, 2018 and July 1, 2017, respectively.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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