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Net Loss Per Share
 12 Months Ended
Dec. 31, 2016
Earnings Per Share [Abstract]  
Net Loss Per Share
8. Net Loss Per Share
The following table sets for the computations of loss per share (in thousands, except share and per share amounts):
 
December 31,
 
2016
 
2015
 
2014
Numerators:
 
 
 
 
 
Loss from continuing operations attributable to common stockholders
$
(13,513
)
 
$
(13,664
)
 
$
(20,117
)
Preferred stock dividends and accretion
—

 
—

 
(1,524
)
Net loss attributable to common stockholders
$
(13,513
)
 
$
(13,664
)
 
$
(21,641
)
Denominator:
 
 
 
 
 
Weighted–average common shares outstanding, basic and diluted
16,472,799

 
14,939,601

 
4,889,901

Loss from continuing operations per share, basic and diluted
$
(0.82
)
 
$
(0.91
)
 
$
(4.43
)
Loss from discontinued operations per share, basic and diluted
—

 
—

 
—

Net loss per common share, basic and diluted
$
(0.82
)
 
$
(0.91
)
 
$
(4.43
)
Due to the net losses for the years ended December 31, 2016, 2015, and 2014, basic and diluted loss per share were the same, as the effect of all potentially dilutive securities would have been anti-dilutive. The following table sets forth the anti-dilutive common share equivalents:
 
December 31,
 
2016
 
2015
 
2014
Stock options
759,719

 
778,385

 
665,216

Restricted stock
839,477

 
513,943

 
438,939

Total anti–dilutive common share equivalents
1,599,196

 
1,292,328

 
1,104,155