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Earnings Per Share
9 Months Ended
Sep. 30, 2020
Earnings per Share [Abstract]  
Earnings per Share

15. Earnings per Share

The following table sets forth basic and diluted weighted average shares outstanding for the periods indicated (in thousands):

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Three Months Ended

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Nine Months Ended

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September 30, 

 

September 30, 

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2020

  

  

2019

    

2020

  

  

2019

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Weighted average shares - basic

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18,142

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18,123

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18,136

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18,101

Effect of dilutive securities

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—

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172

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—

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182

Weighted average shares - assuming dilution

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18,142

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18,295

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18,136

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18,283

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For the three months and nine months ended September 30, 2020, 14,157 shares of common stock potentially issuable upon the exercise of employee stock options were excluded from the weighted average number of shares outstanding on a diluted basis because the effect of such options would be anti-dilutive.  For the three months and nine months ended September 30, 2019, all shares of common stock potentially issuable upon the exercise of employee stock options were included in the weighted average number of shares outstanding on a diluted basis.