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Earnings per Share
 6 Months Ended
Jun. 30, 2018
Earnings Per Share [Abstract]  
Earnings per Share
Earnings per Share

Basic and diluted earnings per share (EPS) are calculated as follows:
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
2018
 
July 1,
2017
 
June 30,
2018
 
July 1,
2017
(In thousands, except per share amounts)
 
 
 
 
Amounts Attributable to Kadant:
 
 
 
 
 
 
 
 
Net Income
 
$
12,349

 
$
8,096

 
$
23,207

 
$
17,047

 
 
 
 
 
 
 
 
 
Basic Weighted Average Shares
 
11,092

 
11,001

 
11,067

 
10,976

Effect of Stock Options, Restricted Stock Units and Employee Stock Purchase Plan Shares
 
308

 
295

 
304

 
274

Diluted Weighted Average Shares
 
11,400

 
11,296

 
11,371

 
11,250

 
 
 
 
 
 
 
 
 
Basic Earnings per Share
 
$
1.11

 
$
0.74

 
$
2.10

 
$
1.55

 
 
 
 
 
 
 
 
 
Diluted Earnings per Share
 
$
1.08

 
$
0.72

 
$
2.04

 
$
1.52



Restricted stock units (RSUs) totaling 34,000 shares of common stock in the second quarter of 2018, 19,000 in the second quarter of 2017, 32,000 in the first six months of 2018 and 29,000 in the first six months of 2017 were not included in the computation of diluted EPS, as the effect would have been antidilutive or, for unvested performance-based RSUs, the performance conditions had not been met as of the end of the reporting periods.