Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Share-based Compensation - Summary of the Non-vested Shares Activities (Details)

v3.20.1
Share-based Compensation - Summary of the Non-vested Shares Activities (Details) - Non-vested shares - $ / shares
1 Months Ended 9 Months Ended 12 Months Ended
Nov. 30, 2018
Dec. 31, 2017
Dec. 31, 2019
Dec. 31, 2018
Number of shares        
Outstanding at the beginning of the period (in shares)   2,700,000 1,795,498 2,625,000
Granted (in shares)       2,572,584
Vested (in shares)   (60,000) (693,362) (2,068,586)
Forfeited (in shares)   (15,000)   (71,250)
Cancelled (in shares) (557,470)     (1,262,250)
Outstanding at the end of the period (in shares)   2,625,000 1,102,136 1,795,498
Weighted average grant date fair value        
Outstanding at the beginning of the period (in dollars per share)   $ 1.661 $ 0.951 $ 1.650
Granted (in dollars per share)       0.537
Vested (in dollars per share)   2.145 0.885 0.872
Forfeited (in dollars per share)   1.650   1.650
Cancelled (in dollars per share)       1.650
Outstanding at the end of the period (in dollars per share)   $ 1.650 $ 0.993 $ 0.951