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Net Loss Per Share (Tables)
 6 Months Ended
Jun. 30, 2017
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following table sets forth the computation of the Company’s basic and diluted net loss per share (in thousands, except per share data):

 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2017
 
2016
 
2017
 
2016
Numerator:
 
 
 
 
 
 
 
Net loss
$
(590
)
 
$
(605
)
 
$
(1,258
)
 
$
(1,316
)
Less: preferred stock dividends
3

 
3

 
6

 
6

Net loss attributable to common stockholders
$
(593
)
 
$
(608
)
 
$
(1,264
)
 
$
(1,322
)
Denominator:
 
 
 
 
 
 
 
Weighted-average number of shares of common stock for basic and diluted net loss per share
37,168

 
35,879

 
37,168

 
35,861

Basic and diluted net loss per share
$
(0.02
)
 
$
(0.02
)
 
$
(0.03
)
 
$
(0.04
)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
The following table represents the potential shares that were excluded from the computation of weighted-average number of shares of common stock in computing the diluted net loss per share for the periods presented because including them would have had an anti-dilutive effect (in thousands):

 
Three and Six Months Ended June 30,
 
2017
 
2016
Unvested restricted stock units
2,387

 
3,208

Unvested restricted stock awards
354

 
363

Outstanding stock options
1,208

 
1,233

Shares of common stock issuable upon conversion of preferred stock, Series A-2
79

 
79