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Commitments and Contingencies - Schedule of Warrants Issued (Details) - $ / shares | Jan. 31, 2019 | Mar. 31, 2018
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Class Of Warrant Or Right [Line Items] |  |
Number of Warrants |  | 7,739,092
Former Financial Advisor | Warrant One |  |
Class Of Warrant Or Right [Line Items] |  |
Number of Warrants | 8,576 |
Exercise Price | $ 8.86 |
Expiration Date | Apr. 01, 2021 |
Former Financial Advisor | Warrant Two |  |
Class Of Warrant Or Right [Line Items] |  |
Number of Warrants | 22,253 |
Exercise Price | $ 5.68 |
Expiration Date | Mar. 30, 2022 |
Former Financial Advisor | Warrant Three |  |
Class Of Warrant Or Right [Line Items] |  |
Number of Warrants | 17,066 |
Exercise Price | $ 12.60 |
Expiration Date | Jun. 30, 2022 |
Former Financial Advisor | Warrant Four |  |
Class Of Warrant Or Right [Line Items] |  |
Number of Warrants | 14,286 |
Exercise Price | $ 12.60 |
Expiration Date | Aug. 31, 2022 |

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- Definition Expiration date of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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