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Earnings Per Share
 6 Months Ended
Jun. 30, 2016
Earnings (Loss) Per Share [Abstract]  
Earnings Per Share [Text Block]
Earnings Per Share
Basic earnings per share is calculated using the weighted average number of shares of common stock outstanding during the period.  Diluted earnings per share is computed in the same manner and also gives effect to all dilutive common equivalent shares outstanding during the period.  Potential common shares that would have the effect of increasing diluted earnings per share are considered to be anti-dilutive. In accordance with U.S. GAAP, these shares were not included in calculating diluted earnings per share. For the six months ended June 30, 2016, the weighted average number of stock options and restricted stock units excluded from the computation of diluted earnings per share were 78 and 0, respectively. For the six months ended June 30, 2015, the weighted average number of stock options and restricted stock units totaling 260 and 0, respectively, were excluded from the computation of diluted earnings per share. For the six months ended June 30, 2016, diluted earnings per share-weighted average shares outstanding included the effect resulting from assumed conversion of the Notes and warrants. For the six months ended June 30, 2015 diluted earnings per share-weighted average shares outstanding do not include any effect resulting from assumed conversion of the Notes and warrants at June 30, 2016 as their impact was anti-dilutive.
The Company’s basic and diluted earnings per share amounts are as follows:

Three Months Ended June 30,
 
Six Months Ended June 30,

2016

2015
 
2016
 
2015
Numerator:


 


 
 
 
 
Net income
$
7,601

 
$
6,027

 
$
21,540

 
$
7,875

Denominator:


 


 


 


Basic earnings per share - weighted average shares outstanding
30,779

 
31,663

 
30,869

 
31,724

Effect of potential dilutive securities:
 
 
 
 


 


Employee stock options and restricted stock units - dilutive shares
563

 
676

 
630

 
649

Convertible senior notes - dilutive shares
412

 
—

 
206

 
—

     Diluted earnings per share - weighted average shares outstanding
31,754

 
32,339

 
31,705

 
32,373

Earnings per share:
 

 
 

 
 

 
 

Basic
$
0.25

 
$
0.19

 
$
0.70

 
$
0.25

Diluted
$
0.24

 
$
0.19

 
$
0.68

 
$
0.24