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Property and Equipment - Additional Information (Detail) | 9 Months Ended
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Sep. 30, 2014
Depreciation and Other Amortization Expenses [Line Items] |
Amortization period of lease hold improvements | 4 years

X
- Definition Amortization period of lease hold improvements. + References No definition available. + Details
Name: | mnkd_AmortizationPeriodOfLeaseHoldImprovements
Namespace Prefix: | mnkd_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | mnkd_DepreciationAndOtherAmortizationExpensesLineItems
Namespace Prefix: | mnkd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration