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Schedule of Assumptions Used to Calculate Fair Value of Warrant Liability (Detail) - ClinicalTrials | Jun. 30, 2020 | Jun. 30, 2019
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Risk Free Interest Rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and Rights Outstanding, Measurement Input | 0.2 | 1.7
Expected life years |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and Rights Outstanding, Measurement Input | 2.9 | 3.8
Expected volatility |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and Rights Outstanding, Measurement Input | 77.4 | 56.8
Dividend Yield |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and Rights Outstanding, Measurement Input | 0.0 | 0.0
Black-Scholes Fair Value |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and Rights Outstanding, Measurement Input | 2.52 | 1.10

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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 Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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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