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Note 6 - Property and Equipment, Net (Details) (USD $) In Thousands, unless otherwise specified | Dec. 28, 2014 | Dec. 29, 2013
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Note 6 - Property and Equipment, Net (Details) [Line Items] |  |
Property, Plant and Equipment, Net | $ 32,739 us-gaap_PropertyPlantAndEquipmentNet | $ 31,659 us-gaap_PropertyPlantAndEquipmentNet
Office Facility Located in Minnetonka, Minnesota [Member] |  |
Note 6 - Property and Equipment, Net (Details) [Line Items] |  |
Property, Plant and Equipment, Net | $ 4,600 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = laco_OfficeFacilityLocatedInMinnetonkaMinnesotaMember |

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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph a -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 7 + Details
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