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Stock Based Compensation (Tables)
9 Months Ended
Sep. 30, 2019
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 nine months ended September 30, 2019:
 
Number of
Shares
 
Weighted Average
Grant Date
Fair Value
Unvested balance at December 31, 2018
349,885

 
$
10.62

Granted
132,327

 
7.69

Vested
(86,316
)
 
13.97

Forfeited
(11,036
)
 
15.37

Unvested balance at September 30, 2019
384,860

 
$
9.90