Registration of securities issued in business combination transactions

Share-based Compensation - Summary of Warrant Activity (Details)

v3.20.4
Share-based Compensation - Summary of Warrant Activity (Details)
 12 Months Ended
Dec. 31, 2020
USD ($)
$ / shares
shares
Common Stock Warrants [Member]  
Number of Warrants, Beginning Balance | shares 247,215
Number of Warrants, Granted | shares 10,678,737
Number of Warrants, Exercised | shares
Number of Warrants, Forfeited | shares
Number of Warrants, Cancelled/Expired | shares
Number of Warrants, Ending Balance | shares 10,925,952
Number of Warrants, Exercisable | shares 10,925,952
Weighted Average Exercise Price, Beginning Balance | $ / shares $ 29.79
Weighted Average Exercise Price, Granted | $ / shares 2.16
Weighted Average Exercise Price, Exercised | $ / shares
Weighted Average Exercise Price, Forfeited | $ / shares
Weighted Average Exercise Price, Cancelled/Expired | $ / shares
Weighted Average Exercise Price, Ending Balance | $ / shares 2.78
Weighted Average Exercise Price, Exercisable | $ / shares $ 2.78
Weighted Average Remaining Contractual Term (years), Beginning 4 years 8 months 19 days
Weighted Average Remaining Contractual Term (years), Granted 5 years 4 months 9 days
Weighted Average Remaining Contractual Term (years), Exercised 0 years
Weighted Average Remaining Contractual Term (years), Ending 5 years 3 months 22 days
Weighted Average Remaining Contractual Term (years), Exercisable 5 years 3 months 22 days
Aggregate Intrinsic Value, Beginning | $
Aggregate Intrinsic Value, Granted | $
Aggregate Intrinsic Value, Exercised | $
Aggregate Intrinsic Value, Forfeited | $
Aggregate Intrinsic Value, Cancelled/Expired | $
Aggregate Intrinsic Value, Ending | $
Aggregate Intrinsic Value, Exercisable | $
Pre-funded Common Stock Warrants [Member]  
Number of Warrants, Beginning Balance | shares 795,000
Number of Warrants, Granted | shares 1,040,540
Number of Warrants, Exercised | shares (795,000)
Number of Warrants, Forfeited | shares
Number of Warrants, Cancelled/Expired | shares
Number of Warrants, Ending Balance | shares 1,040,540
Number of Warrants, Exercisable | shares 1,040,540
Weighted Average Exercise Price, Beginning Balance | $ / shares $ 0.0001
Weighted Average Exercise Price, Granted | $ / shares 0.001
Weighted Average Exercise Price, Exercised | $ / shares 0.0001
Weighted Average Exercise Price, Forfeited | $ / shares
Weighted Average Exercise Price, Cancelled/Expired | $ / shares
Weighted Average Exercise Price, Ending Balance | $ / shares 0.001
Weighted Average Exercise Price, Exercisable | $ / shares $ 0.001
Weighted Average Remaining Contractual Term (years), Beginning 0 years
Weighted Average Remaining Contractual Term (years), Granted 0 years
Weighted Average Remaining Contractual Term (years), Exercised 0 years
Weighted Average Remaining Contractual Term (years), Ending 0 years
Weighted Average Remaining Contractual Term (years), Exercisable 0 years
Aggregate Intrinsic Value, Beginning | $ $ 2,543,921
Aggregate Intrinsic Value, Granted | $
Aggregate Intrinsic Value, Exercised | $
Aggregate Intrinsic Value, Forfeited | $
Aggregate Intrinsic Value, Cancelled/Expired | $
Aggregate Intrinsic Value, Ending | $ 2,069,634
Aggregate Intrinsic Value, Exercisable | $ $ 2,069,634
Preferred Series C Stock Warrants [Member]  
Number of Warrants, Beginning Balance | shares 1,990,000
Number of Warrants, Granted | shares
Number of Warrants, Exercised | shares (1,935,000)
Number of Warrants, Forfeited | shares
Number of Warrants, Cancelled/Expired | shares
Number of Warrants, Ending Balance | shares 55,000
Number of Warrants, Exercisable | shares 55,000
Weighted Average Exercise Price, Beginning Balance | $ / shares $ 4.00
Weighted Average Exercise Price, Granted | $ / shares
Weighted Average Exercise Price, Exercised | $ / shares 4.00
Weighted Average Exercise Price, Forfeited | $ / shares
Weighted Average Exercise Price, Cancelled/Expired | $ / shares
Weighted Average Exercise Price, Ending Balance | $ / shares 4.00
Weighted Average Exercise Price, Exercisable | $ / shares $ 4.00
Weighted Average Remaining Contractual Term (years), Beginning 5 years
Weighted Average Remaining Contractual Term (years), Granted 0 years
Weighted Average Remaining Contractual Term (years), Exercised 0 years
Weighted Average Remaining Contractual Term (years), Ending 3 years 11 months 8 days
Weighted Average Remaining Contractual Term (years), Exercisable 3 years 11 months 8 days
Aggregate Intrinsic Value, Beginning | $
Aggregate Intrinsic Value, Granted | $
Aggregate Intrinsic Value, Exercised | $
Aggregate Intrinsic Value, Forfeited | $
Aggregate Intrinsic Value, Cancelled/Expired | $
Aggregate Intrinsic Value, Ending | $
Aggregate Intrinsic Value, Exercisable | $