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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 036 - Disclosure - Note 6 - Stock-based Compensation (Details Textual) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 037 - Disclosure - Note 6 - Stock-based Compensation - Option Activity (Details) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 038 - Disclosure - Note 7 - Earnings Per Share (Details Textual) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 039 - Disclosure - Note 7 - Earnings Per Share - Basic and Diluted Earnings Per Share (Details) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 040 - Disclosure - Note 8 - Shareholders' Equity (Details Textual) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 041 - Disclosure - Note 9 - Income Taxes (Details Textual) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 042 - Disclosure - Note 10 - Geographic Regions - Financial Information by Geographic Region (Details) </link:definition> |
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| | | <link:roleType id="statement-note-11-discontinued-operations-details-textual" roleURI="http://www.parkelectro.com/20191201/role/statement-note-11-discontinued-operations-details-textual"> |
| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 043 - Disclosure - Note 11 - Discontinued Operations (Details Textual) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 044 - Disclosure - Note 11 - Discontinued Operations - Summary of Discontinued Operations (Details) </link:definition> |
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| | | <link:roleType id="statement-note-11-discontinued-operations-restructuring-charges-details" roleURI="http://www.parkelectro.com/20191201/role/statement-note-11-discontinued-operations-restructuring-charges-details"> |
| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 045 - Disclosure - Note 11 - Discontinued Operations - Restructuring Charges (Details) </link:definition> |
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| | | <link:roleType id="statement-note-12-contingencies-details-textual" roleURI="http://www.parkelectro.com/20191201/role/statement-note-12-contingencies-details-textual"> |
| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 046 - Disclosure - Note 12 - Contingencies (Details Textual) </link:definition> |
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| | | <link:roleType id="statement-note-13-accounting-pronouncements-details-textual" roleURI="http://www.parkelectro.com/20191201/role/statement-note-13-accounting-pronouncements-details-textual"> |
| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 047 - Disclosure - Note 13 - Accounting Pronouncements (Details Textual) </link:definition> |
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| | | </xsd:appinfo> |
| | </xsd:annotation> |
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| <xsd:element abstract="true" id="pke_AdditionalManufacturingFacilityMember" name="AdditionalManufacturingFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_ConsolidationOfNelcoProductsIncAndNeltecIncMember" name="ConsolidationOfNelcoProductsIncAndNeltecIncMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_DirectorsAndCertainOfEmployeesMember" name="DirectorsAndCertainOfEmployeesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="pke_DisposalGroupIncludingDiscontinuedOperationRestructuringCharges" name="DisposalGroupIncludingDiscontinuedOperationRestructuringCharges" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element id="pke_DisposalGroupIncludingDiscontinuedOperationSettlementPayment" name="DisposalGroupIncludingDiscontinuedOperationSettlementPayment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element id="pke_DisposalGroupIncludingDiscontinuedOperationTransitionCostsAndTaxes" name="DisposalGroupIncludingDiscontinuedOperationTransitionCostsAndTaxes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_DocumentAndEntityInformation" name="DocumentAndEntityInformation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_ElectronicsBusinessMember" name="ElectronicsBusinessMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_EquipmentRemovalMember" name="EquipmentRemovalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_FacilityLeaseCostsMember" name="FacilityLeaseCostsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_GainsOnMarketableSecuritiesMember" name="GainsOnMarketableSecuritiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="pke_GeographicRegionsTextBlock" name="GeographicRegionsTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_LossesOnMarketableSecuritiesMember" name="LossesOnMarketableSecuritiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_NoteToFinancialStatementDetailsTextual" name="NoteToFinancialStatementDetailsTextual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_NotesToFinancialStatements" name="NotesToFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_NotesToFinancialStatementsAbstract" name="NotesToFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="pke_NumberOfInsuranceCarriers" name="NumberOfInsuranceCarriers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/> |
| <xsd:element id="pke_NumberOfSitesOfCompanyOrSubsidiariesThatHaveBeenNamedForPotentialEnvironmentalRemediationLiability" name="NumberOfSitesOfCompanyOrSubsidiariesThatHaveBeenNamedForPotentialEnvironmentalRemediationLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/> |
| <xsd:element id="pke_NumberOfUnitsCoveredUnderGeneralLiabilityInsuranceCoverage" name="NumberOfUnitsCoveredUnderGeneralLiabilityInsuranceCoverage" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/> |
| <xsd:element id="pke_PaymentsForProceedsFromStockOptionsExercised" name="PaymentsForProceedsFromStockOptionsExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <xsd:element id="pke_PercentageOfLegalDefenseAndRemediationCostsAssociatedWithSitesReimbursedByInsuranceCarriers" name="PercentageOfLegalDefenseAndRemediationCostsAssociatedWithSitesReimbursedByInsuranceCarriers" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/> |
| <xsd:element id="pke_PercentageOfStockOptionsExercisableOnEachSucceedingYearFromDateOfGrant" name="PercentageOfStockOptionsExercisableOnEachSucceedingYearFromDateOfGrant" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/> |
| <xsd:element id="pke_PercentageOfStockOptionsExercisableOneYearFromDateOfGrant" name="PercentageOfStockOptionsExercisableOneYearFromDateOfGrant" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/> |
| <xsd:element id="pke_ProceedsFromSaleOfTreasuryStockStockOptionsExercised" name="ProceedsFromSaleOfTreasuryStockStockOptionsExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element id="pke_ScheduleOfRightofuseAssetsAndOperatingLeaseLiabilitiesTableTextBlock" name="ScheduleOfRightofuseAssetsAndOperatingLeaseLiabilitiesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="pke_StockRepurchaseProgramNumberOfAdditionalSharesAuthorizedToBeRepurchased" name="StockRepurchaseProgramNumberOfAdditionalSharesAuthorizedToBeRepurchased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/> |
| <xsd:element id="pke_StockRepurchaseProgramPercentageOfOutstandingSharesAuthorizedToBeRepurchased" name="StockRepurchaseProgramPercentageOfOutstandingSharesAuthorizedToBeRepurchased" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/> |
| <xsd:element id="pke_StockoldersEquityIncludingTreasuryStock" name="StockoldersEquityIncludingTreasuryStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="pke_The2018StockOptionPlanMember" name="The2018StockOptionPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-10-geographic-regions-financial-information-by-geographic-region-details" name="statement-statement-note-10-geographic-regions-financial-information-by-geographic-region-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-10-geographic-regions-tables" name="statement-statement-note-10-geographic-regions-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-11-discontinued-operations-restructuring-charges-details" name="statement-statement-note-11-discontinued-operations-restructuring-charges-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-11-discontinued-operations-summary-of-discontinued-operations-details" name="statement-statement-note-11-discontinued-operations-summary-of-discontinued-operations-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-11-discontinued-operations-tables" name="statement-statement-note-11-discontinued-operations-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-3-marketable-securities-estimated-fair-value-of-securities-by-contractual-maturity-details" name="statement-statement-note-3-marketable-securities-estimated-fair-value-of-securities-by-contractual-maturity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-3-marketable-securities-summary-of-availableforsale-securities-details" name="statement-statement-note-3-marketable-securities-summary-of-availableforsale-securities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-3-marketable-securities-summary-of-unrealized-gains-and-losses-on-availableforsale-securities-details" name="statement-statement-note-3-marketable-securities-summary-of-unrealized-gains-and-losses-on-availableforsale-securities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-3-marketable-securities-tables" name="statement-statement-note-3-marketable-securities-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-4-inventories-summary-of-inventories-details" name="statement-statement-note-4-inventories-summary-of-inventories-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-4-inventories-tables" name="statement-statement-note-4-inventories-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-5-leases-future-minimum-lease-payments-details" name="statement-statement-note-5-leases-future-minimum-lease-payments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-5-leases-schedule-of-rightofuse-assets-and-operating-lease-liabilities-details" name="statement-statement-note-5-leases-schedule-of-rightofuse-assets-and-operating-lease-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-5-leases-tables" name="statement-statement-note-5-leases-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-6-stockbased-compensation-option-activity-details" name="statement-statement-note-6-stockbased-compensation-option-activity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-6-stockbased-compensation-tables" name="statement-statement-note-6-stockbased-compensation-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-7-earnings-per-share-basic-and-diluted-earnings-per-share-details" name="statement-statement-note-7-earnings-per-share-basic-and-diluted-earnings-per-share-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="pke_statement-statement-note-7-earnings-per-share-tables" name="statement-statement-note-7-earnings-per-share-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| </xsd:schema> |