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Summary of Warrant Activity (Details) | 3 Months Ended
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Mar. 31, 2022 USD ($) $ / shares shares
Warrants |
Number of Warrants Issued, Warrants outstanding, Beginning balance | shares | 175,792
Weighted Average Exercise Price, Warrants outstanding, Beginning balance | $ / shares | $ 20.96
Number of Warrants Issued, Warrants expired | shares | (7,273)
Weighted Average Exercise Price, Warrants expired | $ / shares | $ 48.30
Number of Warrants Issued, Warrants outstanding, Ending balance | shares | 168,519
Weighted Average Exercise Price, Warrants outstanding, Ending balance | $ / shares | $ 19.78
Aggregate intrinsic value of outstanding warrants | $ |
Weighted average remaining contractual terms (years) | 3 years 9 months 18 days

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