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Stock-based Compensation (Tables)
 9 Months Ended
Sep. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Stock Option Activity

 

          A summary of activity for the nine months ended September 30, 2021 is as follows:

 

 

 

Options

 

 

Weighted

Average

Exercise Price

 

Weighted Average Remaining Contractual Life (years)

 

Aggregate

Intrinsic Value (in $,000)

 

Outstanding as of December 31, 2020

 

 

531,336

 

 

$

10.01

 

 

 

 

 

 

 

Granted

 

 

560,227

 

 

$

2.70

 

 

 

 

 

 

 

Cancelled/forfeited

 

 

(40,673

)

 

$

28.87

 

 

 

 

 

 

 

Outstanding as of September 31, 2021

 

 

1,050,890

 

 

$

5.38

 

 

9.1

 

$

—

 

Vested as of September 30, 2021

 

 

293,574

 

 

$

12.67

 

 

8.9

 

$

—

 

Vested and expected to be vested as of September 30, 2021

 

 

974,134

 

 

$

5.56

 

 

9.1

 

$

—