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Significant Accounting Policies (Narrative) (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Jun. 30, 2012 | Jul. 02, 2011 | Jul. 03, 2010
Significant Accounting Policies [Line Items] |  |  |
Percentage of expected employee health plan claims over which insurance will be claimed | 125.00% |  |
Percentage of revenue from engineering design, development services and tooling | 0.021% | 3.30% | 2.40%
Income tax benefit likely of being realized upon ultimate settlement | 50.00% |  |
Fair value of long-term debt | $ 15.0 | $ 6.0 |

X
- Definition Maximum Amount Of Income Tax Benefits Percentage Realized Upon Ultimate Settlement + References No definition available. + Details
Name: | ktcc_MaximumAmountOfIncomeTaxBenefitsPercentageRealizedUponUltimateSettlement
Namespace Prefix: | ktcc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage Of Expected Over Aggregate Annual Insurance Claims + References No definition available. + Details
Name: | ktcc_PercentageOfExpectedOverAggregateAnnualInsuranceClaims
Namespace Prefix: | ktcc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage Of Revenues + References No definition available. + Details
Name: | ktcc_PercentageOfRevenues
Namespace Prefix: | ktcc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ktcc_SignificantAccountingPoliciesLineItems
Namespace Prefix: | ktcc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
Name: | us-gaap_LongTermDebtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant