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Summary of Significant Accounting Policies (Tables)
 3 Months Ended
Mar. 31, 2015
Accounting Policies [Abstract]  
Computation of basic and diluted earnings per share
The following table sets forth the computation of basic and diluted earnings per share:
 
 
 
Three Months Ended March 31,
 
 
 
2015
 
2014
 
 
 
(In thousands, except per share
data)
 
Numerator:
 
 
 
 
 
 
 
Net income
 
$
2,131
 
$
2,439
 
Less: Net income allocated to unvested participating securities
 
 
32
 
 
21
 
Net income available to common stockholders
 
$
2,099
 
$
2,418
 
 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
Denominator for basic earnings per share— weighted average shares
 
 
5,710
 
 
5,690
 
Effect of dilutive securities:
 
 
 
 
 
 
 
Stock options
 
 
52
 
 
67
 
Denominator for diluted earnings per share — adjusted weighted-average shares and assumed conversions
 
 
5,762
 
 
5,757
 
Basic earnings per share
 
$
0.37
 
$
0.43
 
Diluted earnings per share
 
$
0.36
 
$
0.42