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Stock-Based Compensation (Tables)
 3 Months Ended
Mar. 31, 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 three months ended March 31, 2013 was as follows:
 
Shares
 
Weighted Average Grant Date Price
Nonvested at December 30, 2012
934,628

 
$
7.84

Vested
(146,392
)
 
10.77

Forfeited
(13,933
)
 
10.17

Nonvested at March 31, 2013
774,303

 
$
7.11