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

X

- 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

X

- References

No definition available.

+ Details

Name:	us-gaap_SubsequentEventsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration