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 $)		9 Months Ended			9 Months Ended
Long-Term Debt (Narrative) (Detail) (USD $)	Mar. 29, 2014	Mar. 29, 2014 Line of Credit [Member] One-Month London Interbank Offered Rate [Member]	Mar. 29, 2014 Line of Credit [Member] Federal Funds Rate [Member]	Oct. 15, 2010 Wells Fargo Bank	Mar. 29, 2014 Debt Instrument, Basis Spread on Variable Rate, Scenario One [Member] Line of Credit [Member] Fixed Rate [Member]	Mar. 29, 2014 Debt Instrument, Basis Spread on Variable Rate, Scenario Two [Member] Line of Credit [Member] Fixed Rate [Member]	Mar. 29, 2014 Debt Instrument, Basis Spread on Variable Rate, Scenario Three [Member] Line of Credit [Member] Fixed Rate [Member]
Debt Disclosure [Line Items]
Increase in revolving line of credit				$ 30,000,000.0
Variable rate on line of credit facility (percent)		1.50%	1.50%		1.75%	2.00%	2.25%
Additional availability of line of credit	$ 30,000,000