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Stockholders’ Deficit (Tables)
9 Months Ended
Sep. 30, 2019
Equity [Abstract]  
Schedule of common stock reserved for future issuance

 

 

 

 

 

 

 

September 30, 

 

December 31, 

 

    

2019

    

2018

 

 

 

 

 

Convertible preferred stock

 

65,428,088

 

65,428,088

Warrants in Series B convertible preferred stock issued and outstanding

 

2,019,245

 

2,019,245

Common stock warrants

 

140,394

 

140,394

Shares available for grants under stock option plan

 

645,399

 

143,710

Options issued and outstanding under stock plan

 

17,409,666

 

15,932,040

Total common stock reserved for future issuance

 

85,642,792

 

83,663,477

 

Schedule of assumptions used in the option-pricing model for options granted

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended September 30

 

Nine Months Ended September 30

 

    

2019

    

2018

    

2019

    

2018

 

 

 

 

 

 

 

Expected term (in years)

    

5.63 - 6.08

    

5.38 - 6.10

    

5.63 - 6.08

    

5.38 - 6.10

Risk-free interest rate

 

1.6% - 1.9%

 

2.7% - 2.8%

 

1.6% - 2.5%

 

2.6% - 2.8%

Expected volatility

 

48.6% - 49.0%

 

48.2% - 48.4%

 

48.6% - 49.0%

 

48.2% - 48.9%

Expected dividend rate

 

 —

 

 —

 

 —

 

 —

 

Summary of stock based compensation expense for employees

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended

 

Nine Months Ended

 

 

September 30

 

September 30

 

    

2019

    

2018

    

2019

    

2018

Cost of services

 

$

192

 

$

22

 

$

317

 

$

60

Selling and marketing

 

 

355

  

 

90

 

 

617

 

 

266

General and administrative

 

 

1,133

  

 

684

 

 

2,275

 

 

1,978

Total stock-based compensation expense

 

$

1,680

  

$

796

 

$

3,209

 

$

2,304