Trade Accounts Receivable Purchase Programs (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Apr. 02, 2016	Mar. 28, 2015	Jul. 16, 2015	Jun. 27, 2015	Jun. 25, 2014
Receivables [Abstract]
Account Purchase Agreement Maximum Aggregate Amount			$ 20.0		$ 50.0
Trade Accounts Receivable Sold To Third Party	$ 58.2	$ 5.0
Accounts Receivable Factored To Banking Institutions	$ 2.0			$ 0.9

This amount represents the amount of accounts receivable sold to third party financial institutions in relation to the company's accounts receivable factoring program.

No definition available.

Name:	ktcc_AccountsReceivableFactoredToBankingInstitutions
Namespace Prefix:	ktcc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant