Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation (Tables)

v3.10.0.1
Stock-based Compensation (Tables)
 12 Months Ended
Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Share-based Compensation, Activity
Shares available for future grant under the 2014 Plan was as follows:
 
Shares Available For Grant
Available as of December 31, 2017
4,838

Granted
(4,279
)
Forfeited
523

Expired
185

Available as of December 31, 2018
1,267

Schedule of Share-based Compensation, Stock Options, Activity
A summary of the stock option activity as of December 31, 2018 and changes during the fiscal year then ended is presented below:
 
Options
Outstanding
 
Weighted
Average
Exercise
Price
 
Weighted
Average
Remaining
Contractual
Life (Years)
 
Aggregate
Intrinsic
Value
Outstanding at beginning of year
3,156

 
$
4.96

 
 
 
 
Granted
3,925

 
$
1.93

 
 
 
 
Exercised
(1
)
 
$
1.13

 
 
 
 
Forfeited
(429
)
 
$
4.67

 
 
 
 
Expired
(185
)
 
$
7.91

 
 
 
 
Outstanding at end of year
6,466

 
$
3.05

 
8.34
 
$
58

Vested and expected to vest
6,466

 
$
3.05

 
8.34
 
$
58

Exercisable at year end
2,149

 
$
5.22

 
6.07
 
$
37

The following table summarizes information about stock options outstanding as of December 31, 2018:
 
 
Options Outstanding
 
Options Exercisable
Range of
Exercise
Prices
 
Number of
Shares
 
Weighted-Average
Remaining
Contractual Life
(Years)
 
Weighted
Average
Price
 
Number of
Shares
 
Weighted
Average
Price
$0.49 - $1.59
 
688

 
8.44
 
$
1.17

 
272

 
$
1.13

$1.76 - $1.79
 
1,824

 
9.50
 
$
1.76

 
68

 
$
1.79

$1.82 - $2.85
 
2,422

 
9.09
 
$
2.16

 
381

 
$
2.54

$3.22 - $15.33
 
1,532

 
5.80
 
$
6.85

 
1,428

 
$
6.89

 
 
6,466

 
8.34
 
$
3.05

 
2,149

 
$
5.22

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
The fair value of each stock option grant was estimated on the date of grant using the Black-Scholes Model under the following assumptions:
 
Years Ended December 31,
 
2018
 
2017
Dividend yield
—
 
—
Risk-free interest rate
2.68% - 3.0%
 
1.83% - 2.37%
Expected term (in years)
5.27-10
 
5.27-9.23
Volatility
88%-106%
 
77%-88%
Schedule of Unvested Restricted Stock Units Roll Forward
RSU activity for the year ended December 31, 2018 is summarized below:

 
Number of
Shares
 
 Weighted
Average Grant-
Date Fair Value
Unvested as of January 1, 2018
617

 
$
1.65

Granted
354

 
$
1.78

Vested
(599
)
 
$
1.46

Forfeited
(94
)
 
$
2.78

Unvested as of December 31, 2018
278

 
$
1.83

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Stock-based compensation expense recorded for stock options and RSUs granted to employees and non-employees was as follows:

 
Years Ended December 31,
 
2018
 
2017
Sales and marketing
$
611

 
$
485

Research and development
426

 
439

General and administrative
1,831

 
1,304

Restructuring
—

 
186

 
$
2,868

 
$
2,414