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Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2015
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Earnings Per Share
The following is an analysis of basic and diluted EPS, reflecting the application of the two-class method, as described below:
 
2015
 
2014
 
2013
Net income
$
20,952

 
$
24,570

 
$
22,783

Dividends and undistributed earnings allocated to participating securities(1)
(59
)
 
(75
)
 
(64
)
Net income available to common shareholders
$
20,893

 
$
24,495

 
$
22,719

Weighted-average common shares outstanding for basic EPS
8,020,851

 
7,450,980

 
7,634,455

Dilutive effect of stock-based awards( 2)
28,857

 
19,613

 
18,815

Weighted-average common and potential common shares for diluted EPS
8,049,708

 
7,470,593

 
7,653,270

Earnings per common share:
  

 
  

 
  

Basic EPS
$
2.60

 
$
3.29

 
$
2.98

Diluted EPS
2.60

 
3.28

 
2.97

Awards excluded from the calculation of diluted EPS(3):
 
 
 
 
 
Stock options
13,250

 
13,750

 
15,250

(1)
Represents dividends paid and undistributed earnings allocated to nonvested stock-based awards that contain non-forfeitable rights to dividends.
(2)
Represents the effect of the assumed exercise of stock options, vesting of restricted shares, vesting of restricted stock units, and vesting of LTIP awards that have met the performance criteria, utilizing the treasury stock method.
(3)
Represents stock-based awards not included in the computation of potential common shares for purposes of calculating diluted EPS as the exercise prices were greater than the average market price of the Company's common stock