XML 31 R41.htm IDEA: XBRL DOCUMENT v2.4.0.8

Note 11- Related Party Transactions (Detail) (USD $)	Mar. 30, 2012	Sep. 30, 2013 Officer and director sqft
Area of Real Estate Property		5,000
Facility charges	$ 700

Represents facility charges payable for use of resources.

No definition available.

Name:	pwvi_FacilityCharges
Namespace Prefix:	pwvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Area of a real estate property.

No definition available.

Name:	us-gaap_AreaOfRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant