v3.8.0.1
NET LOSS PER SHARE (Tables)
 12 Months Ended
Dec. 31, 2017
Earnings Per Share [Abstract]  
Reconciliation of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders
The following is a reconciliation of basic and diluted net loss per share attributable to common stockholders:
 
Year Ended December 31,
 
2017
 
2016
 
2015
Net loss
$
(8,932
)
 
$
(6,572
)
 
$
(7,891
)
Accretion of cumulative dividends of redeemable preferred stock to redemption value
(4,563
)
 
(5,876
)
 
(4,797
)
Forfeiture of 50% of Series B Preferred Stock accumulated dividends
5,965

 
—

 
—

Series A Preferred Stock preference payment in common stock
(16,000
)
 
—

 
$
—

Net loss attributable to common stockholders - basic and diluted
$
(23,530
)
 
$
(12,448
)
 
$
(12,688
)
Weighted average number of shares - basic and diluted
4,017,330

 
1,744,356

 
1,744,356

Net loss per share attributable to common stockholders - basic and diluted (1)
$
(5.86
)
 
$
(7.14
)
 
$
(7.27
)

(1) 
The effect of discontinued operations on loss per share has been excluded for 2015 as it is not material.

Schedule of Antidilutive Shares Excluded from the Calculation of Diluted Net Loss Per Share
The following contingently issuable and convertible equity shares were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive for all periods presented (shares for the redeemable convertible preferred shares were determined based on the applicable conversation ratio of 1:1:
 
Year Ended December 31,
 
2017
 
2016
 
2015
Redeemable convertible preferred stock - Series A
—

 
670,000

 
670,000

Redeemable convertible preferred stock - Series B
—

 
2,979,475

 
2,979,475

Restricted stock
548,005

 
677,241

 
593,653

Stock options
176,959

 
248,201

 
248,871

Warrants
44,101

 
44,101

 
44,101

 
769,065

 
4,619,018

 
4,536,100