Annual report pursuant to Section 13 and 15(d)

COMMITMENTS AND CONTINGENCIES (Details Textual)

v2.4.1.9
COMMITMENTS AND CONTINGENCIES (Details Textual) (USD $)
1 Months Ended 12 Months Ended
Dec. 20, 2012
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Commitments And Contingencies [Line Items]        
Payments for Legal Settlements $ 2,100,000us-gaap_PaymentsForLegalSettlements      
Additional Royalties and Commissions, Accrual Interest Percentage   3.25%prph_AdditionalRoyaltiesAndCommissionsAccrualInterestPercentage    
Additional Royalties and Commissions Payable, Installment Amount 1,000,000prph_AdditionalRoyaltiesAndCommissionsPayableInstallmentAmount 100,000prph_AdditionalRoyaltiesAndCommissionsPayableInstallmentAmount 0prph_AdditionalRoyaltiesAndCommissionsPayableInstallmentAmount 100,000prph_AdditionalRoyaltiesAndCommissionsPayableInstallmentAmount
Accrued royalties and sales commissions (Note 3) 3,500,000us-gaap_AccruedRoyaltiesCurrent      
Additional Annual Installment Includes In Other Current Liability   100,000prph_AdditionalAnnualInstallmentIncludesInOtherCurrentLiability    
Additional Annual Installment Includes In Other Long Term Obligation   100,000prph_AdditionalAnnualInstallmentIncludesInOtherLongTermObligation    
Litigation Settlement Interest   10,000us-gaap_LitigationSettlementInterest 13,000us-gaap_LitigationSettlementInterest  
Employment Agreements [Member] | Chief Operating Officer [Member]        
Commitments And Contingencies [Line Items]        
Percentage of Average Annual Total   299.00%prph_PercentageOfAverageAnnualTotal
/ prph_EmployeeAgreementsAxis
= prph_EmploymentAgreementsMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefOperatingOfficerMember
   
Severance Costs   1,000,000us-gaap_SeveranceCosts1
/ prph_EmployeeAgreementsAxis
= prph_EmploymentAgreementsMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefOperatingOfficerMember
   
Employment Agreements [Member] | Chief Executive Officer [Member]        
Commitments And Contingencies [Line Items]        
Percentage of Average Annual Total   299.00%prph_PercentageOfAverageAnnualTotal
/ prph_EmployeeAgreementsAxis
= prph_EmploymentAgreementsMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
   
Severance Costs   2,500,000us-gaap_SeveranceCosts1
/ prph_EmployeeAgreementsAxis
= prph_EmploymentAgreementsMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
   
Mr Karkus [Member] | Employment Agreements Dated November 8, 2011 [Member] | Chief Executive Officer [Member]        
Commitments And Contingencies [Line Items]        
Officers Compensation   675,000us-gaap_OfficersCompensation
/ prph_EmployeeAgreementsAxis
= prph_EmploymentAgreementsDatedNovember82011Member
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= prph_MrKarkusMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
   
Mr Cuddihy [Member] | Employment Agreements Dated November 8, 2011 [Member] | Chief Operating Officer and Chief Financial Officer [Member]        
Commitments And Contingencies [Line Items]        
Officers Compensation   $ 350,000us-gaap_OfficersCompensation
/ prph_EmployeeAgreementsAxis
= prph_EmploymentAgreementsDatedNovember82011Member
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= prph_MrCuddihyMember
/ us-gaap_TitleOfIndividualAxis
= prph_ChiefOperatingOfficerAndChiefFinancialOfficerMember