Fair Value Measurement - Summary of Changes in Fair Value of Level 3 Warrant Liabilities Measured at Recurring Basis (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Fair Value Disclosures [Abstract] | ||
| Derivative liabilities, beginning balance | $ 3,448,390 | $ 1,583,103 |
| Conversion of derivative liability to equity | (419,415) | (42,556,454) |
| Reclassify derivative liability to equity | (36,445) | |
| Issuance of warrants | 1,395,618 | |
| Change in fair value of derivative liability | (2,992,530) | 43,026,123 |
| Derivative liabilities, ending balance | 3,448,390 | |
| Warrants payable, beginning balance | 1,154,120 | 155,412 |
| Exchange of warrants payable for equity | (1,183,091) | |
| Accrual of other warrant obligations | 2,135,430 | 14,992 |
| Change in fair value of warrants payable | (2,100,494) | 983,716 |
| Warrants payable, ending balance | $ 5,965 | $ 1,154,120 |
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- Definition Accrual of other warrant obligations. No definition available.
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- Definition Exchange of warrants payable for equity. No definition available.
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- Definition Amount of increase (decrease) of financial instrument classified in shareholders' equity measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. No definition available.
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- Definition Exchange of derivative liability for equity. No definition available.
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- Definition Fair value measurement with unobservable inputs reconciliation recurring basis liability issuance of warrants. No definition available.
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- Definition Fair value of financial instrument classified in shareholders' equity measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. No definition available.
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- Definition Reclassify derivative liability to equity. No definition available.
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- References No definition available.
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- Definition Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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