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Subsequent Event - Additional Information (Detail) (Subsequent Event, At Market Sales Agreement, USD $) In Millions, unless otherwise specified | Mar. 18, 2013
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Subsequent Event | At Market Sales Agreement |
Subsequent Event [Line Items] |
Aggregate offering price for each ATM agreement | $ 50.0
No event minimum issue and sale price of common stock under both ATM Agreements | $ 50.0

X
- Definition Aggregate Offering Price Under Each Agreement + References No definition available. + Details
Name: | mnkd_AggregateOfferingPriceUnderEachAgreement
Namespace Prefix: | mnkd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Total Offering Price + References No definition available. + Details
Name: | mnkd_TotalOfferingPrice
Namespace Prefix: | mnkd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration