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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2020
Share-based Payment Arrangement [Abstract]  
Summary of Stock Option Activity

The following table summarizes our stock option activity:

 

    Stock Options     Weighted Average Exercise Price  
Outstanding December 31, 2019     1,360     $ 106.00  
Outstanding September 30, 2020     1,360     $ 106.00  
Exercisable as of September 30, 2020     775     $ 106.00