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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

Name:	pwvi_ASummaryOfPropertyAndEquipmentAtAbstract
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.

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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.

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No definition available.

+ Details

Name:	pwvi_Equipment
Namespace Prefix:	pwvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- Definition

Amount of accumulated depreciation pertaining to real estate investments for entities with a substantial portion of business acquiring and holding investment real estate.

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No definition available.

+ Details

Name:	pwvi_LessAccumulatedDepreciation
Namespace Prefix:	pwvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- 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

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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_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

Name:	pwvi_TotalPropertyAndEquipments
Namespace Prefix:	pwvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration