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Subsequent Events - Additional Information (Detail) | 9 Months Ended
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Sep. 30, 2015
Subsequent Events [Abstract] |
Lease amendment date | Oct. 27, 2015

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- Definition Operating lease agreement amended date. + References No definition available. + Details
Name: | pulm_OperatingLeaseAgreementAmendedDate
Namespace Prefix: | pulm_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_SubsequentEventsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration