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Stock-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2019
Share-based Payment Arrangement [Abstract]  
Schedule of the stock-based compensation expense
The Company included stock-based compensation expense related to all of the Company’s stock-based payments awards in various operating expense categories for the years ended December 31, 2019, 2018 and 2017 as follows:
Years Ended
December 31,
201920182017
Stock-based compensation expense:
Technology and development$818  $492  $615  
Sales and marketing
2,196  1,470  2,062  
General and administrative2,745  1,858  2,044  
Total in continuing operations$5,759  $3,820  $4,721  
Discontinued operations—  —  673  
Total stock-based compensation expense$5,759  $3,820  $5,394  
Schedule of stock option awards outstanding and exercisable by exercise price range
The following table presents summary information of the Company’s stock option awards outstanding and exercisable under all plans as of December 31, 2019:
Options OutstandingOptions Exercisable
OptionsWeighted
Average
Remaining
Contractual
Life
Weighted
Average
Exercise
Price
OptionsWeighted
Average
Remaining
Contractual
Life
Weighted
Average
Exercise
Price
Range of Exercise PricesOutstanding(Years)Per ShareExercisable(Years)Per Share
$1.11 - $1.94
658,915  2.25$1.86  635,477  2.55$1.85  
$2.00 – $2.88
1,305,000  5.922.40  894,269  4.792.45  
$3.60 – $4.83
1,921,869  4.034.22  1,463,677  2.614.18  
$5.01 – $5.90
1,019,324  2.755.56  437,037  0.715.57  
$6.75 – $8.37
422,648  4.838.17  163,164  3.037.59  
5,327,756  3.96$3.70  3,593,624  2.74$4.00  
Schedule of stock option activity for all plans
The following table presents summary information of the Company’s stock option awards outstanding and exercisable under all plans as of December 31, 2019:
Number of
Stock Option
Awards
Outstanding
Weighted
Average
Exercise Price
Per Share
December 31, 2018(1)
6,348,251  $3.73  
  Stock option awards granted
884,479  6.06  
Stock option awards forfeited(215,813) 4.33  
Stock option awards exercised(1,689,161) 4.05  
Stock option awards outstanding as of December 31, 20195,327,756  $4.00  
Stock option awards vested and exercisable as of December 31, 2019
3,593,624  $4.00  
(1) Includes certain employment inducement stock option awards granted outside of the Company’s stockholder approved equity compensation plans. These grants are generally subject to the same terms and conditions as applied to awards granted under the Company’s 2013 Plan. Stock option awards are generally granted at the fair market value of the Company’s common stock on the date of grant, generally vest over periods up to four years, have a one year cliff with monthly vesting thereafter, and have terms not to exceed 10 years.
(2) Includes the vested portion of each employment inducement stock option award.
Schedule of stock options other selected information
Other selected information is as follows:
Years Ended
December 31,
201920182017
Aggregate fair value of stock option awards vested$1,183  $374  $644  
Aggregate intrinsic value of outstanding stock option awards954  1,270  5,503  
Aggregate intrinsic value of stock option awards exercised5,533  1,713  748  
Weighted-average grant-date fair value per share of stock option awards granted3.21  1.91  1.13  
Cash proceeds received from stock option awards exercised$6,749  $1,845  $699  
Schedule of assumptions for stock option awards granted
The following table presents the assumptions for stock option awards granted during the years ended December 31, 2019, 2018 and 2017:
201920182017
Volatility
57% - 57%
49% - 55%
49% - 50%
Risk-free interest rate
1.68% - 2.55%
2.37% - 3.01%
1.85% to 2.02%
Expected life (in years)
5.45 - 5.54
5.32 - 5.58
5.65 - 5.67
Dividend yield0.00 %0.00 %0.00 %
Fair value of the stock option award was calculated using the Monte-Carlo Simulation with the following assumptions:
2018
Exercise price$2.36  
Volatility50 %
Risk-free interest rate2.38 %
Maturity10.00
Milestone 1$4.00  
Milestone 2$5.00  
Cost of equity17 %
Dividend yield— %
Schedule of the non-vested restricted stock unit award activity
The following table presents a summary of the Company’s non-vested restricted stock unit award activity under all plans and related information for the year ended December 31, 2019:
Number of
Restricted
Stock
Awards
Outstanding
Weighted
Average
Grant Date
Fair Value
Per Share
Non-vested restricted stock unit awards outstanding as of December 31, 20182,350,054  $3.00  
Restricted stock unit awards granted
1,364,236  6.10  
Restricted stock unit awards forfeited(265,681) 4.32  
Restricted stock unit awards vested(973,568) 2.91  
Non-vested restricted stock unit awards outstanding as of December 31, 20192,475,041  4.61  
Schedule of restricted stock unit awards other selected information
Years Ended
December 31,
201920182017
Aggregate grant date fair value of restricted stock unit awards outstanding$11,398  $7,050  $5,515  
Schedule of assumptions for awards issued under the 2014 ESPP
For the years ended December 31, 2019, 2018, and 2017 the following assumptions were used for awards issued under the 2014 ESPP:
201920182017
Volatility
60% - 93%
36% - 42%
42% - 52%
Risk-free interest rate
1.37% - 2.86%
1.13% - 2.28%
0.70% - 1.1%
Expected life (in years)0.500.500.50
Dividend yield0.00 %0.00 %0.00 %