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Commitments and Contingencies (Details Narrative) - USD ($)	2 Months Ended
	Mar. 05, 2021	Jun. 25, 2015
Royalty percentage		2.00%
Subsequent Event [Member]
Proceeds from private placement	$ 6,250,000

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- Definition

Custom Element.

+ References

No definition available.

+ Details

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Namespace Prefix:	pwvi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- Details

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Namespace Prefix:
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