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NET LOSS PER SHARE (Tables)
 9 Months Ended
Sep. 29, 2013
Earnings Per Share [Abstract]  
Summary of Incremental Shares of Common Stock from Potentially Dilutive Securities
The following table summarizes the incremental shares of common stock from potentially dilutive securities, calculated using the treasury stock method (in thousands except per share amounts):
 
Three Months Ended
 
Nine Months Ended
 
September 29,
2013
 
September 30,
2012
 
September 29,
2013
 
September 30,
2012
Basic and diluted net income loss per share of common stock:
 
 
 
Numerator:
 
 
 
 
 
 
 
     Net loss
$
(412
)
 
$
(6,034
)
 
$
(13,487
)
 
$
(10,499
)
 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
Weighted-average shares outstanding - basic
59,024

 
58,586

 
58,881

 
58,504

Effect of dilutive stock options and restricted stock units
—

 
—

 
—

 
—

Weighted-average shares outstanding - diluted
59,024

 
58,586

 
58,881

 
58,504

 
 
 
 
 
 
 
 
Net loss per share of common stock:
 
 
 
 
 
 
 
Basic and diluted
$
(0.01
)
 
$
(0.10
)
 
$
(0.23
)
 
$
(0.18
)