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Commitments and Contingencies (Details) (Chief Technical Officer [Member], USD $)
 1 Months Ended
May 31, 2014
Nov. 30, 2012
Chief Technical Officer [Member]
    
Officers salary   $ 12,500us-gaap_OfficersCompensation
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pwvi_ChiefTechnicalOfficerMember
Sought back pay to officers   37,500pwvi_SoughtBackPayToOfficers
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pwvi_ChiefTechnicalOfficerMember
Expenses reimbursement   5,012pwvi_ExpensesReimbursement
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pwvi_ChiefTechnicalOfficerMember
Settlement, Amount 30,088us-gaap_LitigationSettlementAmount
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pwvi_ChiefTechnicalOfficerMember		  
Due amount on settlement 5,088pwvi_DueAmountOnSettlement
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pwvi_ChiefTechnicalOfficerMember		  
Additional amount payble on settlement 25,000pwvi_AdditionalAmountPaybleOnSettlement
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pwvi_ChiefTechnicalOfficerMember		  
Monthly Installment $ 12,500pwvi_MonthlyInstallment
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pwvi_ChiefTechnicalOfficerMember