XML 55 R37.htm IDEA: XBRL DOCUMENT
v3.20.2

Antidilutive Securities (Detail) - shares shares in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Potentially Dilutive Securities Outstanding [Line Items] |  |  |
Total anti-dilutive shares | 27,092 | 16,151 | 9,474
Employee Stock option |  |  |
Potentially Dilutive Securities Outstanding [Line Items] |  |  |
Total anti-dilutive shares | 11,030 | 8,057 | 5,606
Restricted Stock Units (RSUs) |  |  |
Potentially Dilutive Securities Outstanding [Line Items] |  |  |
Total anti-dilutive shares |  | 32 | 336
Warrants |  |  |
Potentially Dilutive Securities Outstanding [Line Items] |  |  |
Total anti-dilutive shares | 16,062 | 8,062 | 3,532

X
- Definition Potentially Dilutive Securities Outstanding [Line Items] + References No definition available. + Details
Name: | meip_PotentiallyDilutiveSecuritiesOutstandingLineItems
Namespace Prefix: | meip_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_WarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |