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Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2017
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following table sets forth the computation of the basic and diluted earnings per share for the three and six months ended June 30, 2016 and 2017 (in thousands, except per share data):
 
For the Three Months Ended June 30,
 
For the Six Months Ended June 30,
 
2016
 
2017
 
2016
 
2017
Numerator for basic and diluted earnings per share:
 
 
 
 
 
 
 
Net income
$
5,200

 
$
4,410

 
$
9,771

 
$
11,494

Less: Earnings allocated to unvested restricted stock
(36
)
 
(15
)
 
(77
)
 
(43
)
Income attributable to common stockholders
$
5,164

 
$
4,395

 
$
9,694

 
$
11,451

 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
Denominator for basic earnings per common share - weighted average shares outstanding
16,516

 
16,652

 
16,488

 
16,625

Effect of dilutive securities:
 
 
 
 
 
 
 
Stock options
259

 
377

 
224

 
381

Convertible subordinated notes
300

 
1,064

 
150

 
1,077

Denominator for diluted earnings per common share - weighted average shares outstanding
17,075

 
18,093

 
16,862

 
18,083

 
 
 
 
 
 
 
 
Basic earnings per common share:
$
0.31

 
$
0.26

 
$
0.59

 
$
0.69

Diluted earnings per common share:
$
0.30

 
$
0.24

 
$
0.57

 
$
0.63