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Net Loss Per Share
 3 Months Ended
Mar. 31, 2013
Net Loss Per Share [Abstract]  
Net Loss Per Share
 3.       Net Loss Per Share

The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share data):
 
 
Three Months Ended March 31,
 
 
2013
 
 
2012
 
 
 
 
 
 
 
Numerator:
 
 
 
 
 
 
Net loss
 
$
(273
)
 
$
(1,147
)
Denominator:
 
 
 
 
 
 
 
 
Weighted-average shares of common stock oustanding used in
 
 
 
 
 
 
 
 
computing basic and diluted net loss per share
 
 
19,225
 
 
 
16,966
 
 
 
 
 
 
 
 
 
Basic and diluted net loss per share
 
$
(0.01
)
 
$
(0.07
)
 
 
 
 
 
 
 
 
Common stock equivalents that were not included in the calculation
because the option or restricted stock unit price was greater than
the average market price of the common shares or the net loss
would cause the effect of the options to be anti-dilutive:
Employee stock options
 
 
2,316
 
 
 
1,932
 
Restricted stock units
 
 
179
 
 
 
204
 
 
 
2,495
 
 
 
2,136
 

The calculation of diluted loss per share excludes 2,315,899 and 1,931,898 shares of common stock issuable upon exercise of employee stock options as of March 31, 2013 and 2012, respectively, and 178,638 and 204,375 non-vested shares of common stock issuable upon exercise of restricted stock awards as of March 31, 2013 and 2012, respectively, because their inclusion in the calculation would be anti-dilutive.