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Property and Equipment (Details Narrative) (USD $) | 12 Months Ended | 94 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2014
Summary of depreciation expenses |  |  |
Depreciation expense for the year ended | $ 16,641pwvi_DepreciationExpenseForTheYearEnded | $ 11,845pwvi_DepreciationExpenseForTheYearEnded | $ 55,258pwvi_DepreciationExpenseForTheYearEnded

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- Definition The reporting period depreciation, depletion and amortization expense on long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. + References No definition available. + Details
Name: | pwvi_DepreciationExpenseForTheYearEnded
Namespace Prefix: | pwvi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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