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State research and development credit exchange receivable (Details) (USD $) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2012 | Dec. 31, 2011
State Research and Development Credit Exchange Receivable (Textual) [Abstract] |  |
Percentage of credit exchange receivable | 65.00% |
Prepaid and other current assets under credit exchange program | $ 450,000 | $ 0
Estimated amounts receivable under program | $ 293,000 | $ 473,000

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- Definition Estimated amounts credit exchange receivable. + References No definition available. + Details
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Namespace Prefix: | mnkd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Percentage of credit exchange receivable. + References No definition available. + Details
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Namespace Prefix: | mnkd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Prepaid and other current assets under credit exchange program. + References No definition available. + Details
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Namespace Prefix: | mnkd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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Namespace Prefix: | mnkd_
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