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Stock Based Awards (Tables)
 12 Months Ended
Dec. 31, 2013
Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]  
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
Restricted share activity is summarized as follows: 
 
 
 
 
 
Weighted Average
 
 
 
Shares
 
Grant Date
 
 
 
Outstanding
 
Fair Value
 
 
 
 
 
 
 
 
Unvested restricted stock at January 1, 2011
 
166,850
 
$
22.00
 
 
 
 
 
 
 
 
Restricted stock granted
 
105,050
 
$
22.01
 
Restricted stock vested
 
(42,830)
 
$
22.48
 
Restricted stock forfeited
 
(12,150)
 
$
22.22
 
 
 
 
 
 
 
 
Unvested restricted stock at December 31, 2011
 
216,920
 
$
21.74
 
 
 
 
 
 
 
 
Restricted stock granted
 
94,850
 
$
24.40
 
Restricted stock vested
 
(55,870)
 
$
21.87
 
Restricted stock forfeited
 
(5,720)
 
$
24.32
 
 
 
 
 
 
 
 
Unvested restricted stock at December 31, 2012
 
250,180
 
$
22.66
 
 
 
 
 
 
 
 
Restricted stock granted
 
87,950
 
$
27.70
 
Restricted stock vested
 
(73,368)
 
$
22.50
 
Restricted stock forfeited
 
(15,680)
 
$
25.01
 
 
 
 
 
 
 
 
Unvested restricted stock at December 31, 2013
 
249,082
 
$
24.33