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Warrants - Summary of Warrant Activity (Details) | 9 Months Ended
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Sep. 30, 2018 USD ($) $ / shares shares
Warrants |
Number of warrants issued warrants outstanding at December 31, 2017 | shares | 3,058,402
Number of warrants issued during the six months ended June 30, 2018 | shares | 190,114
Number of Warrants Issued Warrants outstanding at June 30, 2018 | shares | 3,248,516
Number of warrants issued aggregate intrinsic value of outstanding warrants at June 30, 2018 | $ | $ 69,229
Number of warrants issued weighted average remaining contractual terms at June 30, 2018 (in years) | 3 years 2 months 27 days
Weighted average exercise price warrants outstanding at December 31, 2017 | $ / shares | $ 5.29
Weighted Average Exercise Price Warrants issued during the six months ended June 30, 2018 | $ / shares | 2.63
Weighted Average Exercise Price Warrants outstanding at June 30, 2018 | $ / shares | $ 5.14

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