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EARNINGS (LOSS) PER SHARE (Tables)
 6 Months Ended
Jun. 30, 2014
Earnings Per Share [Abstract]  
Schedule of earnings per share, basic and diluted
A reconciliation of the numerators and denominators of the basic and diluted earnings (loss) per share calculations for the six months ended June 30, 2014 and 2013 were as follows:

 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
 
2014
 
2013
 
2014
 
2013
Earnings (loss) per share ("EPS"):
 
 

 
 

 
 

 
 

Basic
 
$
(0.13
)
 
$
(0.18
)
 
$
(0.27
)
 
$
(0.43
)
Diluted
 
$
(0.13
)
 
$
(0.18
)
 
$
(0.27
)
 
$
(0.43
)
EPS numerator - basic and diluted:
 
 

 
 

 
 

 
 
Net income (loss)
 
$
(4,374
)
 
$
(5,811
)
 
$
(8,918
)
 
$
(14,052
)
EPS denominator (in thousands):
 
 

 
 

 
 

 
 
Weighted average common stock outstanding - basic
 
32,752

 
32,717

 
32,697

 
32,532

Common stock equivalents: stock options and other stock-based awards (a)
 
—

 
—

 
—

 
—

Weighted average number of common stock outstanding - diluted
 
32,752

 
32,717

 
32,697

 
32,532


(a)
For the periods in which net losses are presented, the diluted weighted average number of shares of common stock outstanding did not differ from the basic weighted average number of shares of common stock outstanding because the effects of any potential common stock equivalents (see Note 5 for further details on outstanding stock options, unvested restricted stock units and unvested restricted stock) were anti-dilutive and therefore not included in the calculation of the denominator of dilutive earnings per share.
Schedule of antidilutive securities excluded from computation of earnings per share
The weighted average number of shares outstanding used in the computation of diluted net income (loss) per share for the six months ended June 30, 2014 and 2013 did not include the effect of the following potentially outstanding shares of common stock because the effect would have been anti-dilutive:
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2014
 
2013
 
2014
 
2013
Unvested restricted stock
 
388,812

 
811,107

 
388,812

 
811,107

Unvested restricted stock units
 
35,946

 
110,200

 
35,946

 
110,200

Stock options
 
781,800

 
1,050,450

 
781,800

 
1,050,450

Total
 
1,206,558

 
1,971,757

 
1,206,558

 
1,971,757