Annual report pursuant to Section 13 and 15(d)

Share-Based Compensation - Summary of Number of RSUs Granted (Details)

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Share-Based Compensation - Summary of Number of RSUs Granted (Details) - Restricted Share Units (RSUs) - shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of Shares, RSUs outstanding Beginning Balance   31,367 36,924
Number of Shares, Granted 1,845,328   31,367
Number of Shares, Shares vested (60,000) (25,664) (36,924)
Number of Shares, Forfeited   (5,703)  
Number of Shares, RSUs outstanding Ending Balance 1,785,328   31,367
2015 Plan and 2018 Plan      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of Shares, RSUs outstanding Beginning Balance   31,367 36,924
Number of Shares, Granted 1,345,328   31,367
Number of Shares, Shares vested (60,000) (25,664) (36,924)
Number of Shares, Forfeited   (5,703)  
Number of Shares, RSUs outstanding Ending Balance 1,285,328   31,367
Two Thousand Twenty One Inducement Plan      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of Shares, Granted 500,000    
Number of Shares, RSUs outstanding Ending Balance 500,000    
2015 Plan, 2018 Plan and 2021 Inducement Plan      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of Shares, RSUs outstanding Beginning Balance   31,367 36,924
Number of Shares, Granted 1,845,328   31,367
Number of Shares, Shares vested (60,000) (25,664) (36,924)
Number of Shares, Forfeited   (5,703)  
Number of Shares, RSUs outstanding Ending Balance 1,785,328   31,367