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Shareholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2018
Stockholders' Equity Note [Abstract]  
Schedule of summary of shares granted and vested
A summary of shares granted, forfeited, vested and unvested under the terms of the 2012 Plan from January 1, 2016 to December 31, 2018 is as follows:
 
Number of Shares
 
Weighted Average
Grant Date
Fair Value
Unvested shares at December 31, 2015
158,874

 
$
19.39

Shares granted in 2016
92,150

 
$
21.18

Shares vested / forfeited in 2016
(97,614
)
 
$
21.09

Unvested shares at December 31, 2016
153,410

 
$
19.92

Shares granted in 2017
103,100

 
$
19.99

Shares vested / forfeited in 2017
(108,500
)
 
$
20.05

Unvested shares at December 31, 2017
148,010

 
$
19.71

Shares granted in 2018
123,800

 
$
18.72

Shares vested / forfeited in 2018
(109,820
)
 
$
18.31

Unvested shares at December 31, 2018
161,990

 
$
19.41