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Earnings Per Comon Share (Tables)
 9 Months Ended
Sep. 30, 2013
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
The following table presents a reconciliation of the numerator and denominator used in the calculation of basic and diluted earnings per common share (“EPS”) for periods ended September 30, 2013 and 2012.  All share and per share amounts have been adjusted for the September 2013 2% stock dividend.
Earnings Per Share
 
Quarterly Period Ended:
 
Year-to-Date Period Ended:
 
9/30/2013
 
9/30/2012
 
9/30/2013
 
9/30/2012
Earnings Per Share - Basic:
 
 
 
 
 
 
 
Net Income
$
5,623

 
$
5,748

 
$
16,011

 
$
16,630

Weighted Average Shares - Basic
12,308

 
12,252

 
12,282

 
12,244

Earnings Per Share - Basic
$
0.46

 
$
0.47

 
$
1.30

 
$
1.36

 
 
 
 
 
 
 
 
Earnings Per Share - Diluted:
 
 
 
 
 
 
 
Net Income
$
5,623

 
$
5,748

 
$
16,011

 
$
16,630

Weighted Average Shares - Basic
12,308

 
12,252

 
12,282

 
12,244

Dilutive Average Shares Attributable to Stock Options
36

 
21

 
20

 
18

Weighted Average Shares - Diluted
12,344

 
12,273

 
12,302

 
12,262

Earnings Per Share - Diluted
$
0.46

 
$
0.47

 
$
1.30

 
$
1.36

Antidilutive Shares Excluded from the Calculation
of Earnings Per Share
47

 
129

 
47

 
203