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Earnings per Share (Table)
 9 Months Ended
Sep. 30, 2012
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
The following table sets forth the computation of basic and diluted earnings per share for the three and nine months ended September 30, 2012 and 2011:
 
 
For the Three Months Ended September 30,
 
For the Nine Months Ended September 30,
 
2012
 
2011
 
2012
 
2011
Numerator:
 
 
 
 
 
 
 
Net income
$
1,356

 
$
1,932

 
$
3,542

 
$
4,229

Denominator:
 
 
 
 
 
 
 
Weighted average shares (basic)
27,426

 
26,928

 
27,323

 
26,784

Dilutive effect of potential common shares
937

 
914

 
997

 
906

Weighted average shares (diluted)
28,363

 
27,842

 
28,320

 
27,690

Basic earnings per share
$
0.05

 
$
0.07

 
$
0.13

 
$
0.16

Diluted earnings per share
$
0.05

 
$
0.07

 
$
0.13

 
$
0.15