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Stock-Based Compensation - Summary of Stock Option Activity (Details) - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Share-based Payment Arrangement [Abstract]    
Stock Options Outstanding, Beginning balance 113 947
Stock Options Outstanding, Canceled (113) (834)
Stock Options Outstanding, Granted 1,360  
Stock Options Outstanding, Vested (481)  
Stock Options Outstanding, Ending balance 879 113
Stock Options Exercisable 481  
Weighted Average Exercise Price Outstanding, Beginning balance $ 16,734.00 $ 16,962.00
Weighted Average Exercise Price, Canceled 16,734.00 16,992.00
Weighted Average Exercise Price, Granted 106.00  
Weighted Average Exercise Price, Vested 106.00  
Weighted Average Exercise Price Outstanding, Ending balance 106.00 16,734.00
Weighted Average Exercise Price Exercisable $ 106.00
Weighted Average Remaining Contractual Life (Years), Beginning balance 2 months 12 days 1 year 9 months 18 days
Weighted Average Remaining Contractual Life (Years), Canceled 2 months 12 days  
Weighted Average Remaining Contractual Life (Years), Granted 9 years 8 months 12 days  
Weighted Average Remaining Contractual Life (Years), Vested 9 years 8 months 12 days  
Weighted Average Remaining Contractual Life (Years), Ending balance 9 years 8 months 12 days 2 months 12 days
Weighted Average Remaining Contractual Life (Years), Exercisable 9 years 8 months 12 days