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Earnings (Loss) Per Share (EPS) (Tables)
 3 Months Ended
Mar. 31, 2017
Earnings Per Share [Abstract]  
Schedule of Calculation of Numerator and Denominator in Earnings Per Share
The following table illustrates the calculation of basic and diluted EPS (in thousands, except per share amounts):
 
Three Months Ended
 
March 31,
2017
 
April 1,
2016
Numerator for basic and diluted EPS:
 
 
 
Net loss
$
(4,339
)
 
$
(12,660
)
Denominator for basic EPS:
 
 
 
Weighted average shares outstanding
31,016

 
30,718

Denominator for diluted EPS
31,016

 
30,718

Basic EPS
$
(0.14
)
 
$
(0.41
)
Diluted EPS
$
(0.14
)
 
$
(0.41
)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
The diluted weighted average share calculations do not include the following securities, which are not dilutive to the EPS calculations or the performance criteria have not been met (in thousands):
 
Three Months Ended
 
March 31,
2017
 
April 1,
2016
Time-vested stock options, restricted stock and restricted stock units
1,700

 
1,890

Performance-vested restricted stock and restricted stock units
593

 
441