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Property and Equipment (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
A summary of property and equipment at : |  |
Equipment. | $ 96,737pwvi_Equipment | $ 83,146pwvi_Equipment
Computer equipment (hardware). | 6,975pwvi_ComputerEquipmentHardware1 | 6,975pwvi_ComputerEquipmentHardware1
Software. | 3,929pwvi_Software | 3,929pwvi_Software
Total Property and equipments | 107,641pwvi_TotalPropertyAndEquipments | 94,050pwvi_TotalPropertyAndEquipments
Less: Accumulated depreciation. | (55,258)pwvi_LessAccumulatedDepreciation | (38,616)pwvi_LessAccumulatedDepreciation
Net Property and equipments. | $ 52,383pwvi_NetPropertyAndEquipments | $ 55,434pwvi_NetPropertyAndEquipments

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

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- Definition The carrying amount of capitalized computer software/hardware costs net of accumulated amortization as of the balance sheet date. + References No definition available. + Details
Name: | pwvi_ComputerEquipmentHardware1
Namespace Prefix: | pwvi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition This element represents equipment expense including depreciation, repairs, rentals, and service contract costs. This item also includes equipment purchases which do not qualify for capitalization in accordance with the entity's accounting policy. This item may also include furniture expenses. + References No definition available. + Details
Name: | pwvi_Equipment
Namespace Prefix: | pwvi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of accumulated depreciation pertaining to real estate investments for entities with a substantial portion of business acquiring and holding investment real estate. + References No definition available. + Details
Name: | pwvi_LessAccumulatedDepreciation
Namespace Prefix: | pwvi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References No definition available. + Details
Name: | pwvi_NetPropertyAndEquipments
Namespace Prefix: | pwvi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The carrying amount of capitalized computer software/hardware costs net of accumulated amortization as of the balance sheet date. + References No definition available. + Details
Name: | pwvi_Software
Namespace Prefix: | pwvi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References No definition available. + Details
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Namespace Prefix: | pwvi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration