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Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Nonvested Share Activity [Table Text Block]
A summary of all non-vested shares activity for the six months ended June 30, 2013 was as follows:
 
Shares
 
Weighted Average Grant Date Price
Nonvested at December 30, 2012
934,628

 
$
7.84

Granted
12,867

 
5.83

Vested
(158,481
)
 
10.56

Forfeited
(15,536
)
 
10.13

Nonvested at June 30, 2013
773,478

 
$
7.20