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Stockholders' Equity - Summary of Warrant Activity (Details) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($) $ / shares shares
Warrants outstanding [Roll Forward] |
Outstanding, beginning of period (in shares) | shares | 1,826,608
Warrants issued (in shares) | shares | 2,601,900
Warrants exercised (in shares) | shares | (191,803)
Warrants expired (in shares) | shares | (18)
Outstanding, end of period (in shares) | shares | 4,236,687
Exercisable, end of period (in shares) | shares | 4,236,687
Warrants, Exercise Price per Share [Roll Forward] |
Outstanding, beginning of period (in dollars per share) | $ / shares | $ 23.04
Outstanding, ending of period (in dollars per share) | $ / shares | 9.13
Warrants issued (in dollars per share) | $ / shares | 8.55
Warrants exercised (in dollars per share) | $ / shares | 9.69
Warrants expired (in dollars per share) | $ / shares | 10.00
Exercisable, (in dollars per share) | $ / shares | $ 9.13
Weighted average remaining life | 4 years 2 months 12 days
Weighted average remaining life, Exercisable | 4 years 2 months 12 days
Aggregate Intrinsic Value, Outstanding | $ | $ 37,261
Aggregate Intrinsic Value, Exercisable | $ | $ 37,261

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