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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 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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