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Note 22 - Subsequent Events (Details) (USD $)	0 Months Ended	12 Months Ended
	Jan. 25, 2015	Dec. 29, 2013	Dec. 30, 2012	Dec. 28, 2014	Sep. 28, 2014	Jun. 29, 2014
Note 22 - Subsequent Events (Details) [Line Items]
Cost Method Investments		$ 20,997,000us-gaap_CostMethodInvestments	$ 20,200,000us-gaap_CostMethodInvestments
Subsequent Event [Member] | Rock Ohio Ventures [Member]
Note 22 - Subsequent Events (Details) [Line Items]
Payments for (Proceeds from) Investments	(800,000)us-gaap_PaymentsForProceedsFromInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = laco_RockOhioVenturesMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Rock Ohio Ventures [Member]
Note 22 - Subsequent Events (Details) [Line Items]
Payments for (Proceeds from) Investments		21,000,000us-gaap_PaymentsForProceedsFromInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = laco_RockOhioVenturesMember
Cost Method Investments		$ 21,000,000us-gaap_CostMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = laco_RockOhioVenturesMember		$ 0us-gaap_CostMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = laco_RockOhioVenturesMember	$ 0us-gaap_CostMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = laco_RockOhioVenturesMember	$ 21,000,000us-gaap_CostMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = laco_RockOhioVenturesMember

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Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.

+ 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 210.5-02.12)

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



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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 20

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-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6872867&loc=d3e40691-111596



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-Name Accounting Standards Codification

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-SubTopic 20

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+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

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