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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIENCY) (Parenthetical) (USD $)	10 Months Ended	12 Months Ended
	Dec. 31, 2007	Dec. 31, 2014	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2013	Dec. 31, 2008
Stockholders' Deficiency
Sale of common stock price per share		$ 0.10us-gaap_SaleOfStockPricePerShare		$ 0.75us-gaap_SaleOfStockPricePerShare	$ 0.75us-gaap_SaleOfStockPricePerShare	$ 0.75us-gaap_SaleOfStockPricePerShare	$ 0.25us-gaap_SaleOfStockPricePerShare	$ 0.50us-gaap_SaleOfStockPricePerShare
Stock issuance costs	$ 45,398us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	$ 7,500us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	$ 139,803us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	$ 150,000us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	$ 85,000us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	$ 85,000us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts
Transaction One
Stockholders' Deficiency
Sale of common stock price per share			$ 1.00us-gaap_SaleOfStockPricePerShare / us-gaap_StatementScenarioAxis = pwvi_TransactionOneMember
Number of shares sale			906,000us-gaap_StockRepurchasedDuringPeriodShares / us-gaap_StatementScenarioAxis = pwvi_TransactionOneMember
Transaction Two
Stockholders' Deficiency
Sale of common stock price per share			$ 0.715us-gaap_SaleOfStockPricePerShare / us-gaap_StatementScenarioAxis = pwvi_TransactionTwoMember
Number of shares sale			450,000us-gaap_StockRepurchasedDuringPeriodShares / us-gaap_StatementScenarioAxis = pwvi_TransactionTwoMember
Transaction Three
Stockholders' Deficiency
Sale of common stock price per share			$ 0.43us-gaap_SaleOfStockPricePerShare / us-gaap_StatementScenarioAxis = pwvi_TransactionThreeMember
Number of shares sale			396,000us-gaap_StockRepurchasedDuringPeriodShares / us-gaap_StatementScenarioAxis = pwvi_TransactionThreeMember
Cornerstone Acquisition
Stockholders' Deficiency
Sale of common stock price per share			$ 1.37us-gaap_SaleOfStockPricePerShare / us-gaap_BusinessAcquisitionAxis = pwvi_CornerstoneMember

X

- Definition

Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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