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Stockholders' Equity (Narrative) (Details)
0 Months Ended 3 Months Ended
Jan. 28, 2015
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2008
Dec. 31, 2007
Stockholders Equity [Line Items]          
Warrants issued to purchase shares of common stock   1,922,781us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights 5,620,128us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights    
Warrants [Member]          
Stockholders Equity [Line Items]          
Number of common shares expired underlying stock purchase warrants 2,572,775pip_ClassOfWarrantOrRightOutstandingNumberOfSharesExpired
/ us-gaap_FinancialInstrumentAxis
= us-gaap_WarrantMember
       
2007 Long Term Incentive Plan [Member]          
Stockholders Equity [Line Items]          
Common stock reserved       4,600,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_PlanNameAxis
= pip_StockIncentivePlanTwentyZeroSevenMember
3,500,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_PlanNameAxis
= pip_StockIncentivePlanTwentyZeroSevenMember
Shares approved for issuance   10,300,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= pip_StockIncentivePlanTwentyZeroSevenMember
     
Shares available for grant   2,900,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_PlanNameAxis
= pip_StockIncentivePlanTwentyZeroSevenMember
     
Options award term   10 years