Employee Benefits (Details) (USD $)	12 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Employee Benefits (Textual) [Abstract]
Percentage cost to insure employees	100.00%
Percentage cost to insure dependents	75.00%
Expenses for partially self funded insurance plan	$ 2,300,000	$ 1,500,000	$ 1,700,000
Approximate expense of participant contribution match	10.00%	10.00%	10.00%
Approximate expense of participant contribution	122,000	125,000	122,000
Stop - Loss Insurance [Member]
Employee Benefits (Textual) [Abstract]
Maturity value	60,000
Maximum annual exposure for employee health coverage	$ 2,700,000

Defined contribution plan contribution percentage towards cost to insure dependents.

No definition available.

Name:	pvsw_DefinedContributionPlanContributionPercentageTowardsCostToInsureDependents
Namespace Prefix:	pvsw_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Defined contribution plan contribution percentage towards cost to insure employees.

No definition available.

Name:	pvsw_DefinedContributionPlanContributionPercentageTowardsCostToInsureEmployees
Namespace Prefix:	pvsw_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Defined contribution plan employer matching contribution amount.

No definition available.

Name:	pvsw_DefinedContributionPlanEmployerMatchingContributionAmount
Namespace Prefix:	pvsw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Name:	pvsw_EmployeeBenefitsTextualAbstract
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The amount of expense recognized during the period for partially self funded insurance plan.

No definition available.

Name:	pvsw_ExpensesRelatedToPartiallySelfFundedInsurancePlan
Namespace Prefix:	pvsw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Maximum annual exposure for employee health coverage.

No definition available.

Name:	pvsw_MaximumAnnualExposureForEmployeeHealthCoverage
Namespace Prefix:	pvsw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Percentage of employee's contribution for which the employer contributes a matching contribution to a defined contribution plan.

No definition available.

Name:	pvsw_PercentageOfEmployerContribution
Namespace Prefix:	pvsw_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Stop loss annual insurance coverage per employee.

No definition available.

Name:	pvsw_StopLossAnnualInsuranceCoveragePerEmployee
Namespace Prefix:	pvsw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration