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Share Based Payments - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
May 15, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of stock option issued 42,988 33,337  
Stock option forfeited   13,939  
Weighted average exercise price $ 15.20 $ 162.74  
2018 Omnibus Incentive Plan      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Common stock shares authorized and approved to issue under plan     153,031
Common stock shares available for issuance     85,714
Common stock remaining available for grant 94,485    
2016 Omnibus Incentive Plan      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Common stock shares available for issuance     67,317
Employee and Director Stock Options      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Unrecognized compensation cost related to non-vested stock options outstanding $ 2,400    
Weighted-average remaining vesting period 2 years 3 months 18 days    
Number of stock option issued 42,417 33,337  
Stock option forfeited 3,425    
Weighted average exercise price $ 15.23 $ 162.74  
Weighted average grant date fair value $ 9.71 $ 105.38  
Consultants Stock Options      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Unrecognized compensation cost related to non-vested stock options outstanding $ 39    
Weighted-average remaining vesting period 9 months 18 days    
Number of stock option issued 571 0  
Weighted average exercise price $ 13.58    
Weighted average grant date fair value $ 8.18