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Net Income (Loss) Per Share (Tables)
 3 Months Ended
Mar. 31, 2013
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
The following table is a reconciliation of the net loss and share amounts used in the calculation of basic and diluted net loss per share for the three months ended March 31, 2013 and April 1, 2012:
 
Three Months Ended
 
March 31, 2013
 
April 1, 2012
Basic and diluted net loss per share:
 
 
 
Net loss from continuing operations
$
(5,199
)
 
$
(2,903
)
Net loss from discontinued operations
$
—

 
$
(624
)
Basic and diluted weighted average common shares outstanding
22,868,894

 
21,856,466

Basic and diluted net loss per share from continuing operations
$
(0.23
)
 
$
(0.13
)
Basic and diluted net loss per share from discontinued operations
$
—

 
$
(0.03
)
Common shares excluded from diluted net loss per share computation (1)
10,188,883

 
434,403


(1)
These shares subject to preferred stock, stock options and non-vested shares were not included in the computation of diluted net loss per share because they would have been antidilutive for the periods presented.