Name:	ktcc_DebtDisclosureLineItems
Namespace Prefix:	ktcc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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

Long-Term Debt (Narrative) (Detail) (USD $) In Millions, unless otherwise specified		12 Months Ended			12 Months Ended
	Jun. 28, 2014	Jun. 28, 2014 Line of Credit One-Month London Interbank Offered Rate	Jun. 28, 2014 Line of Credit Federal Funds Rate	Oct. 15, 2010 Wells Fargo Bank	Jun. 28, 2014 Debt Instrument, Basis Spread on Variable Rate, Scenario One Line of Credit Fixed Rate	Jun. 28, 2014 Debt Instrument, Basis Spread on Variable Rate, Scenario Two Line of Credit Fixed Rate	Jun. 28, 2014 Debt Instrument, Basis Spread on Variable Rate, Scenario Three Line of Credit Fixed Rate
Debt Disclosure [Line Items]
Increase in revolving line of credit				$ 30.0
Variable rate on line of credit facility (percent)		1.50%	1.50%		1.75%	2.00%	2.25%
Additional availability of line of credit	$ 30.0