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Net Loss Per Share (Tables)
 12 Months Ended
Dec. 31, 2016
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
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
)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
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