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Stockholders' Equity (Common Stock Issued for Services) (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 | Dec. 31, 2013
Common Stock Issued for Services |  |
Company issued common shares to a third party for six months consulting services | 125,000pwvi_CompanyIssuedCommonSharesToAThirdPartyForSixMonthsConsultingServices |
Common shares issued to an employee as part of his compensation package | 200,000pwvi_CommonSharesIssuedToAnEmployeeAsPartOfHisCompensationPackage |
The expense for the period included in the general and administrative expenses |  | $ 124,750pwvi_TheExpenseForThePeriodIncludedInTheGeneralAndAdministrativeExpenses

X
- Definition Common shares issued to an employee as part of his compensation package + References No definition available. + Details
Name: | pwvi_CommonSharesIssuedToAnEmployeeAsPartOfHisCompensationPackage
Namespace Prefix: | pwvi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | pwvi_CommonStockIssuedForServicesAbstract
Namespace Prefix: | pwvi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Company issued common shares to a third party for six months consulting services + References No definition available. + Details
Name: | pwvi_CompanyIssuedCommonSharesToAThirdPartyForSixMonthsConsultingServices
Namespace Prefix: | pwvi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The expense for the period included in the general and administrative expenses + References No definition available. + Details
Name: | pwvi_TheExpenseForThePeriodIncludedInTheGeneralAndAdministrativeExpenses
Namespace Prefix: | pwvi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant