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Fair Value Measurements (Narrative) (Detail) (USD $) In Millions, unless otherwise specified | Jun. 30, 2012 | Jul. 02, 2011
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Fair Value Disclosures [Line Items] |  |
Federal Funds rate | 1.50% |
Discounted cash flow of revolving line of credit | $ 15.0 | $ 6.0
London Interbank Offered Rate Plus 1.5% [Member] |  |
Fair Value Disclosures [Line Items] |  |
London Interbank Offered Rate | 1.50% |
London Interbank Offered Rate Plus 2.5% [Member] |  |
Fair Value Disclosures [Line Items] |  |
London Interbank Offered Rate | 2.50% |

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- Definition Discounted Cash Flow Revolving Line Of Credit Estimated + References No definition available. + Details
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Namespace Prefix: | ktcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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- Definition Federal Funds Rate Plus Percentage + References No definition available. + Details
Name: | ktcc_FederalFundsRatePlusPercentage
Namespace Prefix: | ktcc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition The percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant