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Stock Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2016
Share-based Compensation [Abstract]  
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
The following summarizes the status of Restricted Stock and changes during the six months ended June 30, 2016:
 
Number of
Shares
 
Weighted Average
Grant Date
Fair Value
Unvested balance at December 31, 2015
112,907

 
$
16.86

Granted
121,092

 
12.55

Vested
(49,183
)
 
14.16

Forfeited
(3,898
)
 
16.10

Unvested balance at June 30, 2016
180,918

 
$
14.73