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Note 5 - Long-Term Debt (Details Textual) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 9 Months Ended 0 Months Ended 1 Months Ended
Nov. 30, 2014
Dec. 01, 2013
Nov. 30, 2014
Dec. 01, 2013
Nov. 30, 2014
Feb. 12, 2014
Jan. 30, 2013
Mar. 02, 2014
Debt Disclosure [Abstract]                
Long-term Line of Credit $ 104,000us-gaap_LineOfCredit   $ 104,000us-gaap_LineOfCredit   $ 104,000us-gaap_LineOfCredit      
Long-term Debt 104,000us-gaap_LongTermDebt   104,000us-gaap_LongTermDebt   104,000us-gaap_LongTermDebt      
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 10,000us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths   10,000us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths   10,000us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage         0.20%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage      
Minimum Interest Coverage Ratio 1.1pke_MinimumInterestCoverageRatio   1.1pke_MinimumInterestCoverageRatio   1.1pke_MinimumInterestCoverageRatio      
Restricted Cash and Cash Equivalents, Noncurrent 25,000us-gaap_RestrictedCashAndCashEquivalentsNoncurrent   25,000us-gaap_RestrictedCashAndCashEquivalentsNoncurrent   25,000us-gaap_RestrictedCashAndCashEquivalentsNoncurrent     25,000us-gaap_RestrictedCashAndCashEquivalentsNoncurrent [1]
Line of Credit Facility, Interest Rate at Period End 1.31%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd   1.31%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd   1.31%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd      
Interest Expense 361us-gaap_InterestExpense 187us-gaap_InterestExpense 1,074us-gaap_InterestExpense 543us-gaap_InterestExpense        
All Periods Thereafter [Member]                
Debt Disclosure [Abstract]                
Maximum Funded Debt Ratio 2.25pke_MaximumFundedDebtRatio
/ us-gaap_StatementScenarioAxis
= pke_AllPeriodsThereafterMember		   2.25pke_MaximumFundedDebtRatio
/ us-gaap_StatementScenarioAxis
= pke_AllPeriodsThereafterMember		   2.25pke_MaximumFundedDebtRatio
/ us-gaap_StatementScenarioAxis
= pke_AllPeriodsThereafterMember		      
Quick Ratio 3.25pke_QuickRatio
/ us-gaap_StatementScenarioAxis
= pke_AllPeriodsThereafterMember		   3.25pke_QuickRatio
/ us-gaap_StatementScenarioAxis
= pke_AllPeriodsThereafterMember		   3.25pke_QuickRatio
/ us-gaap_StatementScenarioAxis
= pke_AllPeriodsThereafterMember		      
February 28 2016 Through February 25 2017 Member                
Debt Disclosure [Abstract]                
Maximum Funded Debt Ratio 3pke_MaximumFundedDebtRatio
/ us-gaap_StatementScenarioAxis
= pke_February282016ThroughFebruary252017Member		   3pke_MaximumFundedDebtRatio
/ us-gaap_StatementScenarioAxis
= pke_February282016ThroughFebruary252017Member		   3pke_MaximumFundedDebtRatio
/ us-gaap_StatementScenarioAxis
= pke_February282016ThroughFebruary252017Member		      
March 1 2015 Through February 27 2016 Member                
Debt Disclosure [Abstract]                
Maximum Funded Debt Ratio 3.5pke_MaximumFundedDebtRatio
/ us-gaap_StatementScenarioAxis
= pke_March12015ThroughFebruary272016Member		   3.5pke_MaximumFundedDebtRatio
/ us-gaap_StatementScenarioAxis
= pke_March12015ThroughFebruary272016Member		   3.5pke_MaximumFundedDebtRatio
/ us-gaap_StatementScenarioAxis
= pke_March12015ThroughFebruary272016Member		      
Through February 28 2015 [Member]                
Debt Disclosure [Abstract]                
Maximum Funded Debt Ratio 3.75pke_MaximumFundedDebtRatio
/ us-gaap_StatementScenarioAxis
= pke_ThroughFebruary282015Member		   3.75pke_MaximumFundedDebtRatio
/ us-gaap_StatementScenarioAxis
= pke_ThroughFebruary282015Member		   3.75pke_MaximumFundedDebtRatio
/ us-gaap_StatementScenarioAxis
= pke_ThroughFebruary282015Member		      
Maximum [Member]                
Debt Disclosure [Abstract]                
Dividend Covenant, Maximum Quarterly Dividend     $ 0.10pke_DividendCovenantMaximumQuarterlyDividend
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		          
Maximum [Member] | Special Dividend [Member]                
Debt Disclosure [Abstract]                
Dividend Covenant, Maximum Quarterly Dividend     $ 2.50pke_DividendCovenantMaximumQuarterlyDividend
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_StatementScenarioAxis
= pke_SpecialDividendMember		          
Maximum [Member] | Through November 27 2016 [Member]                
Debt Disclosure [Abstract]                
Quick Ratio 8.5pke_QuickRatio
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_StatementScenarioAxis
= pke_ThroughNovember272016Member		   8.5pke_QuickRatio
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_StatementScenarioAxis
= pke_ThroughNovember272016Member		   8.5pke_QuickRatio
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_StatementScenarioAxis
= pke_ThroughNovember272016Member		      
Minimum [Member]                
Debt Disclosure [Abstract]                
Restricted Cash and Cash Equivalents, Noncurrent 25,000us-gaap_RestrictedCashAndCashEquivalentsNoncurrent
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		   25,000us-gaap_RestrictedCashAndCashEquivalentsNoncurrent
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		   25,000us-gaap_RestrictedCashAndCashEquivalentsNoncurrent
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		      
Minimum [Member] | Special Dividend [Member]                
Debt Disclosure [Abstract]                
Dividend Covenant, Maximum Quarterly Dividend     $ 1pke_DividendCovenantMaximumQuarterlyDividend
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_StatementScenarioAxis
= pke_SpecialDividendMember		          
Minimum [Member] | Through November 27 2016 [Member]                
Debt Disclosure [Abstract]                
Quick Ratio 8pke_QuickRatio
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_StatementScenarioAxis
= pke_ThroughNovember272016Member		   8pke_QuickRatio
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_StatementScenarioAxis
= pke_ThroughNovember272016Member		   8pke_QuickRatio
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_StatementScenarioAxis
= pke_ThroughNovember272016Member		      
PNC Bank National Association [Member]                
Debt Disclosure [Abstract]                
Long-term Line of Credit 52,000us-gaap_LineOfCredit
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember		   52,000us-gaap_LineOfCredit
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember		   52,000us-gaap_LineOfCredit
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember		      
Line of Credit Facility, Expiration Period           4 years 5 years  
Line of Credit Facility, Maximum Borrowing Capacity           104,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember		 52,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember		  
Proceeds from Lines of Credit     52,000us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember		       52,000us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember		  
PNC Bank National Association [Member] | London Interbank Offered Rate (LIBOR) [Member]                
Debt Disclosure [Abstract]                
Debt Instrument, Basis Spread on Variable Rate         1.10%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember		      
PNC Bank National Association [Member] | Daily LIBOR Plus [Member]                
Debt Disclosure [Abstract]                
Debt Instrument, Basis Spread on Variable Rate         1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember
/ us-gaap_VariableRateAxis
= pke_DailyLIBORPlusMember		      
PNC Bank National Association [Member] | Federal Funds Rate [Member]                
Debt Disclosure [Abstract]                
Debt Instrument, Basis Spread on Variable Rate         0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember
/ us-gaap_VariableRateAxis
= pke_FederalFundsRateMember		      
PNC Bank National Association [Member] | Letter of Credit [Member]                
Debt Disclosure [Abstract]                
Long-term Line of Credit 1,100us-gaap_LineOfCredit
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LetterOfCreditMember		   1,100us-gaap_LineOfCredit
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LetterOfCreditMember		   1,100us-gaap_LineOfCredit
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LetterOfCreditMember		      
Line of Credit Facility, Maximum Borrowing Capacity           2,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LetterOfCreditMember		 2,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LetterOfCreditMember		  
Number of Standby Letter of Credit Issued     2pke_NumberOfStandbyLetterOfCreditIssued
/ us-gaap_LineOfCreditFacilityAxis
= pke_PNCBankNationalAssociationMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LetterOfCreditMember		          
Nelco Products Pte Ltd [Member]                
Debt Disclosure [Abstract]                
Pledge of Stock Percentage as Guarantee for Credit Agreement     65.00%pke_Pledgeofstockpercentageasguaranteeforcreditagreement
/ dei_LegalEntityAxis
= pke_NelcoProductsPteLtdMember		          
Installment 1 [Member]                
Debt Disclosure [Abstract]                
Number of Quarterly Installments     4pke_NumberOfQuarterlyInstallments
/ us-gaap_DebtInstrumentAxis
= pke_Installment1Member		          
Debt Instrument, Periodic Payment, Principal     2,500us-gaap_DebtInstrumentPeriodicPaymentPrincipal
/ us-gaap_DebtInstrumentAxis
= pke_Installment1Member		          
Installment 2 [Member]                
Debt Disclosure [Abstract]                
Number of Quarterly Installments     8pke_NumberOfQuarterlyInstallments
/ us-gaap_DebtInstrumentAxis
= pke_Installment2Member		          
Debt Instrument, Periodic Payment, Principal     $ 3,750us-gaap_DebtInstrumentPeriodicPaymentPrincipal
/ us-gaap_DebtInstrumentAxis
= pke_Installment2Member		          
[1] The balance sheet at March 2, 2014 has been derived from the audited financial statements at that date.