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Earnings per Share
 12 Months Ended
Jan. 01, 2022
Earnings Per Share [Abstract]  
Earnings Per Share Earnings per Share
Basic and diluted EPS were calculated as follows:
(In thousands, except per share amounts)January 1, 2022January 2, 2021December 28, 2019
Net Income Attributable to Kadant$84,043 $55,196 $52,068 
Basic Weighted Average Shares11,579 11,482 11,235 
Effect of Stock Options, Restricted Stock Units and Employee Stock Purchase Plan Shares76 82 222 
Diluted Weighted Average Shares11,655 11,564 11,457 
   
Basic Earnings per Share$7.26 $4.81 $4.63 
Diluted Earnings per Share$7.21 $4.77 $4.54 
The effect of outstanding and unvested RSUs of the Company's common stock totaling 14,200 shares in 2021, 22,900 shares in 2020, and 24,000 shares in 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.