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Share-based Compensation (Details) - Restricted Shares Granted on August 23, 2019 [Member] - shares
4 Months Ended 12 Months Ended
Dec. 31, 2019
Dec. 31, 2020
Non-vested share, Beginning balance 1,505,833
Granted 1,887,000
Vested (307,000) (571,996)
Forfeited (74,167) (78,333)
Non-vested share, Ending balance 1,505,833 855,504