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Fair Value Measurements (Assets And Liabilities Measured At Fair Value On Recurring Basis) (Detail) (USD $) | 6 Months Ended |  |
--- | --- | --- | ---
Dec. 27, 2014 | Sep. 03, 2014 | Jun. 28, 2014
Fair Value Disclosures [Line Items] |  |  |
Foreign currency forward contracts, Financial Assets |  |  | $ 3,641,000 us-gaap_AssetsFairValueDisclosureRecurring
Line of Credit Facility, Amount Outstanding | 12,000,000 us-gaap_LineOfCreditFacilityAmountOutstanding |  |
Long-term Debt | 33,800,000 us-gaap_LongTermDebt | 35,000,000 us-gaap_LongTermDebt |
Secured Debt, Repurchase Agreements |  |  | 7,900,000 us-gaap_SecuredDebtRepurchaseAgreements
Fixed Rate | Repurchase Agreements [Member] |  |  |
Fair Value Disclosures [Line Items] |  |  |
Variable rate on line of credit facility (percent) | 2.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_RepurchaseAgreementsMember / us-gaap_VariableRateAxis = ktcc_FixedRateMember |  |
Line of Credit | One-Month London Interbank Offered Rate |  |  |
Fair Value Disclosures [Line Items] |  |  |
Variable rate on line of credit facility (percent) | 1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = ktcc_OneMonthLondonInterbankOfferedRateMember |  |
Line of Credit | Federal Funds Rate |  |  |
Fair Value Disclosures [Line Items] |  |  |
Variable rate on line of credit facility (percent) | 1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = ktcc_FederalFundsRateMember |  |
Forward Contracts |  |  |
Fair Value Disclosures [Line Items] |  |  |
Foreign currency forward contracts, Financial Assets | 169,000 us-gaap_AssetsFairValueDisclosureRecurring / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember |  |
Foreign currency forward contracts, Financial Liabilities | (4,421,000)us-gaap_LiabilitiesFairValueDisclosureRecurring / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember |  |
Interest Rate Swap |  |  |
Fair Value Disclosures [Line Items] |  |  |
Foreign currency forward contracts, Financial Liabilities | (213,000)us-gaap_LiabilitiesFairValueDisclosureRecurring / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember |  |
Level 1 |  |  |
Fair Value Disclosures [Line Items] |  |  |
Foreign currency forward contracts, Financial Assets |  |  | 0 us-gaap_AssetsFairValueDisclosureRecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member
Level 1 | Forward Contracts |  |  |
Fair Value Disclosures [Line Items] |  |  |
Foreign currency forward contracts, Financial Assets | 0 us-gaap_AssetsFairValueDisclosureRecurring / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member |  |
Foreign currency forward contracts, Financial Liabilities | 0 us-gaap_LiabilitiesFairValueDisclosureRecurring / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member |  |
Level 1 | Interest Rate Swap |  |  |
Fair Value Disclosures [Line Items] |  |  |
Foreign currency forward contracts, Financial Liabilities | 0 us-gaap_LiabilitiesFairValueDisclosureRecurring / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member |  |
Level 2 |  |  |
Fair Value Disclosures [Line Items] |  |  |
Foreign currency forward contracts, Financial Assets |  |  | 3,641,000 us-gaap_AssetsFairValueDisclosureRecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member
Level 2 | Forward Contracts |  |  |
Fair Value Disclosures [Line Items] |  |  |
Foreign currency forward contracts, Financial Assets | 169,000 us-gaap_AssetsFairValueDisclosureRecurring / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |  |
Foreign currency forward contracts, Financial Liabilities | (4,421,000)us-gaap_LiabilitiesFairValueDisclosureRecurring / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |  |
Level 2 | Interest Rate Swap |  |  |
Fair Value Disclosures [Line Items] |  |  |
Foreign currency forward contracts, Financial Liabilities | (213,000)us-gaap_LiabilitiesFairValueDisclosureRecurring / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |  |
Level 3 |  |  |
Fair Value Disclosures [Line Items] |  |  |
Foreign currency forward contracts, Financial Assets |  |  | 0 us-gaap_AssetsFairValueDisclosureRecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member
Level 3 | Forward Contracts |  |  |
Fair Value Disclosures [Line Items] |  |  |
Foreign currency forward contracts, Financial Assets | 0 us-gaap_AssetsFairValueDisclosureRecurring / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |  |
Foreign currency forward contracts, Financial Liabilities | 0 us-gaap_LiabilitiesFairValueDisclosureRecurring / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |  |
Level 3 | Interest Rate Swap |  |  |
Fair Value Disclosures [Line Items] |  |  |
Foreign currency forward contracts, Financial Liabilities | 0 us-gaap_LiabilitiesFairValueDisclosureRecurring / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |  |

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