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Stockholders' Equity - Schedule of Warrant Activity (Detail) | 12 Months Ended
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Dec. 31, 2019 shares
Class Of Warrant Or Right [Line Items] |
Balance as of January 1, 2019 | 0
Warrants issued | 7,070,680
Warrants exercised | 0
Warrants expired | 0
Balance as of December 31, 2019 | 7,070,680
Registered Direct Warrants, Series A [Member] |
Class Of Warrant Or Right [Line Items] |
Balance as of January 1, 2019 | 0
Warrants issued | 3,449,112
Warrants exercised | 0
Warrants expired | 0
Balance as of December 31, 2019 | 3,449,112
Registered Direct Warrants, Series B [Member] |
Class Of Warrant Or Right [Line Items] |
Balance as of January 1, 2019 | 0
Warrants issued | 3,449,112
Warrants exercised | 0
Warrants expired | 0
Balance as of December 31, 2019 | 3,449,112
Registered Direct Warrants, Placement Agent [Member] |
Class Of Warrant Or Right [Line Items] |
Balance as of January 1, 2019 | 0
Warrants issued | 172,456
Warrants exercised | 0
Warrants expired | 0
Balance as of December 31, 2019 | 172,456

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Number of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Details
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