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Significant Accounting Policies (Narrative) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jul. 03, 2010
Significant Accounting Policies [Line Items]
Percentage of expected employee health plan claims over which insurance will be claimed	125.00%
Percentage of revenue from engineering design, development services and tooling	0.021%	3.30%	2.40%
Income tax benefit likely of being realized upon ultimate settlement	50.00%
Fair value of long-term debt	$ 15.0	$ 6.0

X

- Definition

Maximum Amount Of Income Tax Benefits Percentage Realized Upon Ultimate Settlement

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X

- Definition

Percentage Of Expected Over Aggregate Annual Insurance Claims

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No definition available.

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Namespace Prefix:	ktcc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage Of Revenues

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No definition available.

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Namespace Prefix:	ktcc_
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- Details

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X

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant