Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation (Tables)

v3.8.0.1
Stock-based Compensation (Tables)
 12 Months Ended
Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Share-based Compensation, Activity
Shares available for future grant under the 2014 Plan, after taking into account the 2014 Plan Amendment, is as follows for the year ended December 31, 2017:
 
 
 
Shares
Available For
Grant
 
Available as of December 31, 2016
 
 
948
 
Granted
 
 
(1,872)
 
Forfeited
 
 
211
 
Expired
 
 
151
 
Share pool increase
 
 
5,400
 
Available as of December 31, 2017
 
 
4,838
 
Schedule of Share-based Compensation, Stock Options, Activity
A summary of the option activity as of December 31, 2017 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
 
 
2,477
 
$
6.50
 
 
 
 
 
 
 
Granted
 
 
1,112
 
$
1.79
 
 
 
 
 
 
 
Exercised
 
 
(82)
 
$
0.57
 
 
 
 
 
 
 
Forfeited
 
 
(200)
 
$
7.04
 
 
 
 
 
 
 
Expired
 
 
(151)
 
$
6.46
 
 
 
 
 
 
 
Outstanding at end of year
 
 
3,156
 
$
4.96
 
 
7.68
 
$
683
 
Vested and expected to vest
 
 
3,156
 
$
4.96
 
 
7.68
 
$
683
 
Exercisable at year end
 
 
1,581
 
$
6.35
 
 
6.39
 
$
53
 
Summary of information about stock options outstanding
The following table summarizes information about stock options outstanding as of December 31, 2017:
 
 
 
Options Outstanding
 
Options Exercisable
 
 
 
 
 
Weighted-Average
 
Weighted
 
 
 
Weighted
 
Range of
 
 
 
Remaining
 
Average
 
 
 
Average
 
Exercise
 
Number of
 
Contractual Life
 
Exercise
 
Number of
 
Exercise
 
Prices
 
Shares
 
(Years)
 
Price
 
Shares
 
Price
 
$0.49 - $1.25
 
 
700
 
 
9.43
 
$
1.16
 
 
32
 
$
0.49
 
$2.27 - $3.78
 
 
882
 
 
6.95
 
$
3.09
 
 
518
 
$
3.27
 
$3.97 - $7.00
 
 
877
 
 
7.39
 
$
5.82
 
 
563
 
$
6.25
 
$7.07 - $15.33
 
 
697
 
 
7.21
 
$
10.05
 
 
468
 
$
10.29
 
 
 
 
3,156
 
 
7.68
 
$
4.96
 
 
1,581
 
$
6.35
 
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 option pricing model under the following assumptions:
 
 
 
Years Ended December 31,
 
 
 
2017
 
2016
 
2015
 
Dividend yield
 
—
 
—
 
—
 
Risk-free interest rate
 
1.83% - 2.37%
 
1.24% - 2.37%
 
1.41% - 2.50%
 
Expected term (in years)
 
5.27-9.23
 
5.27-10
 
5.52-10
 
Volatility
 
77%-88%
 
77%-83%
 
73%-76%
 
Schedule of Unvested Restricted Stock Units Roll Forward
RSU activity for the year ended December 31, 2017 is summarized below:
 
 
 
Number of
Shares
 
Weighted
Average Grant-
Date Fair Value
 
Unvested as of January 1, 2017
 
 
-
 
$
-
 
Granted
 
 
760
 
$
1.63
 
Vested
 
 
(132)
 
$
1.59
 
Forfeited
 
 
(11)
 
$
1.25
 
Unvested as of December 31, 2017
 
 
617
 
$
1.65
 
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,
 
 
 
2017
 
2016
 
2015
 
Sales and marketing
 
$
485
 
$
677
 
$
579
 
Research and development
 
 
439
 
 
632
 
 
414
 
General and administrative
 
 
1,304
 
 
1,812
 
 
738
 
Restructuring
 
 
186
 
 
-
 
 
-
 
 
 
$
2,414
 
$
3,121
 
$
1,731