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Computation of Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2018
Earnings Per Share [Abstract]  
Calculation of Basic and Diluted Earnings Per Share

The calculation of basic and diluted earnings per share for the three and six months ended June 30, 2018 and 2017 was as follows:

 

 

 

Three Months Ended June 30

 

 

Six Months Ended June 30

 

 

 

2018

 

 

2017

 

 

2018

 

 

2017

 

Numerator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income

 

$

6,735

 

 

$

4,156

 

 

$

12,263

 

 

$

5,674

 

Denominator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Determination of shares

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted-average common shares outstanding

 

 

5,044

 

 

 

5,116

 

 

 

5,045

 

 

 

5,117

 

Dilutive effect - share-based awards

 

 

20

 

 

 

11

 

 

 

19

 

 

 

15

 

Diluted weighted-average common shares

   outstanding

 

 

5,064

 

 

 

5,127

 

 

 

5,064

 

 

 

5,132

 

Earnings per common share

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Basic

 

$

1.34

 

 

$

0.81

 

 

$

2.43

 

 

$

1.11

 

Diluted

 

$

1.33

 

 

$

0.81

 

 

$

2.42

 

 

$

1.11