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EARNINGS PER SHARE
9 Months Ended
Sep. 30, 2021
EARNINGS PER SHARE  
EARNINGS PER SHARE

(3)   EARNINGS PER SHARE

Basic earnings per share are computed by dividing net income by the weighted-average number of common shares outstanding during the period. Diluted earnings per share is computed by dividing net income by the weighted-average number of common shares outstanding and the number of dilutive potential common share equivalents during the period, calculated using the treasury-stock method for outstanding stock options.

The calculation of basic and diluted earnings per share for the three and nine months ended September 30, 2021 and 2020 are as follows (in thousands, except per share data):

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For the Three Months Ended September 30, 

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For the Nine Months Ended September 30, 

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2021

    

2020

    

2021

    

2020

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Basic earnings per share

 

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Net income available to common stockholders

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$

6,107

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$

1,333

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$

8,209

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$

7,287

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Basic weighted-average shares outstanding

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34,768

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34,486

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34,805

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33,564

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Basic earnings per share

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$

0.18

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$

0.04

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$

0.24

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$

0.22

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Diluted earnings per share

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Net income available to common stockholders

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$

6,107

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$

1,333

​

$

8,209

​

$

7,287

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Weighted-average shares outstanding

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34,768

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34,486

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34,805

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33,564

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Effect of dilutive securities - options and restricted stock

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725

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990

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778

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1,151

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Diluted weighted-average shares outstanding

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35,493

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35,476

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35,583

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34,715

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Diluted earnings per share

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$

0.17

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$

0.04

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$

0.23

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$

0.21

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For both the three and nine months ended September 30, 2021, options to purchase 0.2 million shares of common stock were excluded from the dilutive stock calculation because their effect would have been anti-dilutive.

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For both the three and nine months ended September 30, 2020, options to purchase 0.1 million shares of common stock were excluded from the dilutive stock calculation because their effect would have been anti-dilutive.