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Trade Accounts Receivable Purchase Programs (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Jun. 27, 2020 | Jul. 03, 2021
Receivables [Abstract] |  |
Account Purchase Agreement Maximum Aggregate Amount |  | $ 25.0
Trade Accounts Receivable Sold To Third Party | $ 41.4 |

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- Definition This amount represents the maximum amount of receivables eligible to be sold under the Account Purchase Agreement. + References No definition available. + Details
Name: | ktcc_AccountPurchaseAgreementMaximumAggregateAmount
Namespace Prefix: | ktcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Trade Accounts Receivable Sold To Third Party + References No definition available. + Details
Name: | ktcc_TradeAccountsReceivableSoldToThirdParty
Namespace Prefix: | ktcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_ReceivablesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration