Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation (Tables)

v3.19.2
Stock-based Compensation (Tables)
 6 Months Ended
Jun. 30, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity
The following table summarizes information about the Company’s stock options outstanding as of June 30, 2019, and activity during the six months then ended:
 
Stock
Awards
 
Weighted-
Average
Exercise Price
 
Weighted-
Average
Remaining
Contractual
Life (Years)
 
Aggregate
Intrinsic
Value
Balance as of December 31, 2018
6,466

 
$
3.05

 
 
 
 
Options granted
674

 
1.45

 
 
 
 
Options exercised
(186
)
 
1.23

 
 
 
 
Options forfeited
(451
)
 
2.12

 
 
 
 
Options cancelled
(180
)
 
3.75

 
 
 
 
Balance as of June 30, 2019
6,323

 
$
2.98

 
7.93
 
$
65

Vested and expected to vest at June 30, 2019
6,323

 
$
2.98

 
7.93
 
$
65

Exercisable as of June 30, 2019
2,554

 
$
4.61

 
6.08
 
$
42

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
The per-share fair value of each stock option was determined on the date of grant using the Black-Scholes option pricing model using the following assumptions:
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2019
 
2018
 
2019
 
2018
Dividend yield
—

 
—

 
—

 
—

Risk-free interest rate
2.09
%
 
2.85
%
 
2.12
%
 
2.70%-2.97%

Expected term (in years)
6

 
6-10

 
6

 
6-10

Volatility
102
%
 
89
%
 
102
%
 
89
%
Schedule of Unvested Restricted Stock Units Roll Forward
RSU activity for the period ended June 30, 2019 is summarized below:
 
Number of
Shares
 
Weighted-
Average Grant
Date Fair Value
Unvested as of December 31, 2018
278

 
$
1.83

Granted
560

 
1.64

Vested
(563
)
 
1.65

Forfeited
(36
)
 
2.02

Unvested at June 30, 2019
239

 
$
1.78

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense related to options and RSUs granted to employees and non-employees is included in the condensed consolidated statements of operations and comprehensive loss as follows:
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2019
 
2018
 
2019
 
2018
Sales and marketing
$
156

 
$
166

 
$
379

 
$
275

Research and development
73

 
47

 
118

 
225

General and administrative
328

 
189

 
696

 
794

 
$
557

 
$
402

 
$
1,193

 
$
1,294