Name:	pphm_CommonSharesReservedForIssuanceUnderOutstandingOptionGrantsAndAvailableForIssuanceUnderOurStockIncentivePlans
Namespace Prefix:	pphm_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	pphm_EquityCompensationPlansDetailsNarrativeAbstract
Namespace Prefix:	pphm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Common stock remaining available for purchase under 2010 employee stock purchase plan.

No definition available.

Name:	pphm_SharesCommonStockRemainingAvailableForPurchaseUnderOur2010EmployeeStockPurchasePlan
Namespace Prefix:	pphm_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Common shares reserved for issuance under future grants of share-based awards.

No definition available.

Name:	pphm_StockReservedForIssuanceFromFutureGrants
Namespace Prefix:	pphm_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Common shares reserved for issuance under outstanding options.

No definition available.

Name:	pphm_StockReservedForIssuanceFromOutstandingOptions
Namespace Prefix:	pphm_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Aggregate unrecognized cost of option awards made to employees under a stock option plan or plans, that have yet to vest.

No definition available.

Name:	us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Weighted average remaining contractual term for fully vested and expected to vest options that are exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901