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Earnings per Share
 3 Months Ended
Mar. 28, 2020
Earnings Per Share [Abstract]  
Earnings per Share Earnings per Share

Basic and diluted earnings per share (EPS) are calculated as follows:
 
 
Three Months Ended
 
 
March 28,
2020
 
March 30,
2019
(In thousands, except per share amounts)
 
 
 
 
 
 
 
Net Income Attributable to Kadant
 
$
12,531

 
$
10,900

 
 
 
 
 
Basic Weighted Average Shares
 
11,432

 
11,133

Effect of Stock Options, Restricted Stock Units and Employee Stock Purchase Plan Shares
 
76

 
252

Diluted Weighted Average Shares
 
11,508

 
11,385

 
 
 
 
 
Basic Earnings per Share
 
$
1.10

 
$
0.98

 
 
 
 
 
Diluted Earnings per Share
 
$
1.09

 
$
0.96



The effect of outstanding and unvested restricted stock units (RSUs) of the Company's common stock totaling 43,000 shares in the first three months of 2020 and 44,000 shares in the first three months of 2019 was not included in the computation of diluted EPS for the respective periods 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.