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Note 19. Employee Retirement Plan (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012
Compensation and Retirement Disclosure [Abstract]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	4.00%
Defined Benefit Plan, Contributions by Employer	$ 0.1	$ 0.1
Defined Contribution Vesting Term	5 years

X

- Definition

No authoritative reference available.

+ References

No definition available.

+ Details

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Namespace Prefix:	laco_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The increase in the fair value of plan assets from contributions made by the employer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)(3)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

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