XML 77 R63.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Enterprise-Wide Disclosures Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Detail) | 12 Months Ended
--- | ---
Jun. 30, 2018 | Jul. 01, 2017 | Jul. 02, 2016
Segment Reporting Information [Line Items] |  |  |
Percentage Of Net Sales | 100.00% | 100.00% | 0.00%
Domestic (U.S.) |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage Of Net Sales | 74.00% | 77.00% | 72.00%
China |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage Of Net Sales | 24.00% | 19.00% | 15.00%
Canada |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage Of Net Sales | 0.00% | 1.00% | 7.00%
Foreign |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage Of Net Sales | 2.00% | 3.00% | 6.00%

X
- 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

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_CN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=dei_LocationDomain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |