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Earnings per Share
3 Months Ended
Mar. 31, 2018
Earnings Per Share [Abstract]  
Earnings per Share
Earnings per Share
The following weighted average shares and share equivalents were used to calculate basic and diluted earnings per share for the three months ended March 31, 2018 and 2017:
 
 
Three Months Ended March 31,
 
 
2018
 
2017
Weighted average number of shares outstanding used to calculate basic EPS
 
3,675

 
3,705

Dilutive securities:
 
 
 
 
Stock options and restricted share units
 
545

 
392

Weighted average number of shares and share equivalents outstanding used to calculate diluted EPS
 
4,220

 
4,097


The following stock options issued under equity incentive plans were outstanding during the three months ended March 31, 2018 and 2017, but were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive.
 
 
Three Months Ended March 31,
 
 
2018
 
2017
Anti-dilutive securities
 
15

 
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