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Number of sites of the company or subsidiaries that have been named for potential environmental remediation liability.

+ References

No definition available.

+ Details

Name:	pke_NumberOfSitesOfCompanyOrSubsidiariesThatHaveBeenNamedForPotentialEnvironmentalRemediationLiability
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- Definition

Number of units covered under general liability insurance coverage.

+ References

No definition available.

+ Details

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Namespace Prefix:	pke_
Data Type:	xbrli:integerItemType
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- Definition

Percentage of legal defense and remediation costs associated with sites reimbursed by insurance carriers.

+ References

No definition available.

+ Details

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- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 410

-SubTopic 30

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 25

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346

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- Definition

Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Details

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Note 13 - Contingencies (Details) (USD $)	12 Months Ended
Note 13 - Contingencies (Details) (USD $)	Mar. 01, 2015	Mar. 02, 2014	Mar. 03, 2013
Note 13 - Contingencies (Details) [Line Items]
Number Of Sites Of Company Or Subsidiaries That Have Been Named For Potential Environmental Remediation Liability	4
Percentage Of Legal Defense And Remediation Costs Associated With Sites Reimbursed By Insurance Carriers	100.00%
Number Of Units Covered Under General Liability Insurance Coverage	3
Litigation Settlement, Expense	$ 23,000us-gaap_LitigationSettlementExpense	$ 8,000us-gaap_LitigationSettlementExpense	$ 56,000us-gaap_LitigationSettlementExpense
Accrual for Environmental Loss Contingencies	$ 0	$ 0
Two Insurance Carriers [Member]
Note 13 - Contingencies (Details) [Line Items]
Percentage Of Legal Defense And Remediation Costs Associated With Sites Reimbursed By Insurance Carriers	100.00%
Insurance Carrier One [Member]
Note 13 - Contingencies (Details) [Line Items]
Percentage Of Legal Defense And Remediation Costs Associated With Sites Reimbursed By Insurance Carriers	45.00%