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Net Loss Per Share Attributable to Common Stockholders
 9 Months Ended
Sep. 30, 2016
Earnings Per Share [Abstract]  
Net Loss Per Share Attributable to Common Stockholders
Net Loss Per Share Attributable to Common Stockholders
 
The following table summarizes the computation of basic and diluted net loss per share attributable to common stockholders of the Company (in thousands, except share and per share data):
 
 
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
 
 
2016
 
2015
 
2016
 
2015
Net loss
 
$
(5,365
)
 
$
(6,231
)
 
$
(17,574
)
 
$
(16,194
)
Accretion of convertible preferred stock to redemption value
 
—

 
—

 
—

 
(448
)
Accrued dividends on convertible preferred stock
 
—

 
(1,554
)
 
—

 
(3,769
)
Net loss attributable to common stockholders—basic and diluted
 
(5,365
)
 
(7,785
)
 
(17,574
)
 
(20,411
)
Weighted-average number of common shares—basic and diluted
 
20,835,868

 
94,753

 
20,832,727

 
91,650

Net loss per share attributable to common stockholders—basic and diluted
 
$
(0.26
)
 
$
(82.16
)
 
$
(0.84
)
 
$
(222.70
)

 
The following potentially dilutive securities outstanding, prior to the use of the treasury stock method or if‑converted method, have been excluded from the computation of diluted weighted‑average common shares outstanding, because including them would have had an anti‑dilutive effect due to the losses reported.
 
 
 
September 30,
 
 
2016
 
2015
Convertible preferred stock
 
—

 
10,159,614

Stock options
 
2,101,964

 
1,528,475

 
 
2,101,964

 
11,688,089


 
As the Company incurred a net loss for the three and nine months ended September 30, 2016 there is no income allocation required under the two‑class method or dilution attributed to weighted‑average shares outstanding in the computation of diluted loss per share attributable to common stockholders.