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Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 28, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Nonvested Share Activity [Table Text Block]
A summary of all non-vested shares activity for the six months ended June 28, 2015 was as follows:
 
Shares
 
Weighted Average Grant Date Price
Non-vested at December 28, 2014
395,427

 
$
6.68

Granted
295,741

 
7.89

Vested
(76,893
)
 
9.60

Forfeited
(9,748
)
 
6.21

Nonvested at June 28, 2015
604,527

 
$
7.07