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Stock-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2019
Stock-Based Compensation  
Schedule of stock-based compensation

 

 

 

 

 

 

 

 

 

 

 

 

For the Years Ended December 31, 

 

    

2019

    

2018

    

2017

Cost of revenue

 

$

256,924

 

$

279,221

 

$

214,325

General and administrative

 

 

1,167,161

 

 

1,000,002

 

 

1,670,015

Sales and marketing

 

 

348,603

 

 

329,644

 

 

441,931

Research and development

 

 

82,277

 

 

155,452

 

 

128,092

Total stock-based compensation expense

 

$

1,854,965

 

$

1,764,319

 

$

2,454,363

 

Summary of stock option activity

 

 

 

 

 

 

 

 

 

 

 

 

 

    

 

    

 

 

    

Weighted-Average

    

 

 

 

 

 

 

Weighted-Average

 

Remaining

 

Aggregate

 

 

 

 

Exercise Price

 

Contractual

 

Intrinsic

 

 

Options

 

Per Share

 

Life (Yrs.)

 

Value

Outstanding beginning of period

 

1,129,463

 

$

2.29

 

4.2

 

$

25,052,908

 

 

 

 

 

 

 

 

 

 

 

Options granted

 

50,000

 

 

21.13

 

 

 

 

 

Options exercised

 

(539,853)

 

 

1.60

 

 

 

 

 

Options cancelled

 

(750)

 

 

26.33

 

 

 

 

 

Options expired

 

 

 

 

 

 

 

 

Outstanding end of period

 

638,860

 

$

4.31

 

4.3

 

$

12,192,995

Exercisable

 

586,985

 

$

2.84

 

3.9

 

$

12,067,647

 

Schedule of weighted average assumptions were used to estimate the fair value of stock option grants using Black-Scholes model

 

 

 

 

 

 

 

 

 

 

For the Years Ended December 31, 

 

 

    

2019

    

2018

    

2017

 

Volatility

 

59.1

%  

%  

92.0

%

Expected term (years)

 

6.3

 

 

6.3

 

Risk-free interest rate

 

1.5

%  

%  

1.4

%

Dividend yield

 

0.0

%  

 —

%  

0.0

%

 

Summary of restricted stock unit activity

 

 

 

 

 

 

 

    

Restricted

    

Weighted-Average

 

 

Stock

 

Grant Date

 

 

Units

 

Fair Value

Unvested at December 31, 2018

 

226,501

 

$

15.89

Granted

 

178,657

 

$

21.88

Vested

 

(93,989)

 

$

16.41

Cancelled

 

(14,121)

 

$

15.11

Unvested at December 31, 2019

 

297,048

 

$

19.36