XML 28 R28.htm IDEA: XBRL DOCUMENT v2.4.1.9

Stock option activity (Tables)

12 Months Ended

Dec. 31, 2014

Stock option activity:

Stock option activity

Stock option activity for the year ended December 31, 2014, is summarized as follows:

		Shares				Weighted Average Exercise Price				Weighted Average Remaining Contractual Life (Years)				Aggregate Intrinsic Value
Options outstanding at December 31, 2013			2,750,000			$	0.78				9.00			$	—
Granted			—				—				—				—
Expired/forfeited			—				—				—				—
Options outstanding at December 31, 2014			2,750,000			$	0.78				9.00			$	—

X

- Details

Name:	pwvi_StockOptionActivityAbstract
Namespace Prefix:	pwvi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration