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ENTERPRISE-WIDE DISCLOSURES Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Detail) | 12 Months Ended
--- | ---
Jun. 28, 2014 | Jun. 29, 2013 | Jun. 30, 2012
Segment Reporting Information [Line Items] |  |  |
Percentage Of Net Sales | 100.00% | 100.00% | 100.00%
Domestic (U.S.) |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage Of Net Sales | 64.70% | 68.20% | 59.40%
Canada |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage Of Net Sales | 16.50% | 22.40% | 28.80%
Foreign |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage Of Net Sales | 18.80% | 9.40% | 11.80%

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

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- Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration