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Common Stock Warrants (Details) - Warrants
 9 Months Ended
Sep. 30, 2020
$ / shares
shares
Balance Outstanding, Beginning | shares 13,496,924
Number warrants granted | shares 0
Number warrants exercised | shares (7,098,108)
Number warrants forfeited | shares 0
Number warrants expired | shares (115,226)
Balance outstanding, Ending | shares 6,283,590
Number warrants outstanding, exercisable | shares 6,283,590
Weighted average exercise price outstanding, beginning | $ / shares $ 2.02
Weighted average exercise price granted | $ / shares 0.00
Weighted average exercise price exercised | $ / shares 0.71
Weighted average exercise price forfeited | $ / shares 0.00
Weighted average exercise price expired | $ / shares 0.00
Weighted average exercise price outstanding, ending | $ / shares 2.83
Weighted average exercise price outstanding, exercisable | $ / shares $ 2.83
Weighted average remaining contractual term outstanding, beginning 4 years 25 days
Weighted average remaining contractual term outstanding, exercised 3 years 7 months 20 days
Weighted average remaining contractual term outstanding, ending 3 years 11 days
Weighted average remaining contractual term outstanding, exercisable 3 years 11 days