v3.8.0.1

Commitments and Contingent Liabilities (Details)	Dec. 31, 2017 USD ($)
Commitments and Contingent Liabilities [Abstract]
2018	$ 77,981
2019	60,623
2020	43,265
2021	3,605
Total	$ 185,474

Future minimum aggregate office space commitment under non cancelable agreements current.

No definition available.

Name:	pvnnf_FutureMinimumAggregateOfficeSpaceCommitmentUnderNonCancelableAgreementsCurrent
Namespace Prefix:	pvnnf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future minimum aggregate office space commitment under non cancelable agreements in four years.

No definition available.

Name:	pvnnf_FutureMinimumAggregateOfficeSpaceCommitmentUnderNonCancelableAgreementsInFourYears
Namespace Prefix:	pvnnf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future minimum aggregate office space commitment under non cancelable agreements in three years.

No definition available.

Name:	pvnnf_FutureMinimumAggregateOfficeSpaceCommitmentUnderNonCancelableAgreementsInThreeYears
Namespace Prefix:	pvnnf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future minimum aggregate office space commitment under non cancelable agreements in two years.

No definition available.

Name:	pvnnf_FutureMinimumAggregateOfficeSpaceCommitmentUnderNonCancelableAgreementsInTwoYears
Namespace Prefix:	pvnnf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future minimum aggregate office space commitment under non cancelable agreements total.

No definition available.

Name:	pvnnf_FutureMinimumAggregateOfficeSpaceCommitmentUnderNonCancelableAgreementsTotal
Namespace Prefix:	pvnnf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

No definition available.

Name:	us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration