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NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)
 12 Months Ended
Jan. 03, 2015
item
Nature of business  
Number of industry groups in which the entity operates 2cuo_NumberOfIndustryGroupsInWhichEntityOperates
Number of companies collectively referred to as TMC 3cuo_NumberOfWhollyOwnedSubsidiaries
Heating Ventilation and Air Conditioning Products [Member]  
Nature of business  
Number of reportable segments 2us-gaap_NumberOfReportableSegments
/ us-gaap_ProductOrServiceAxis
= cuo_HeatingVentilationAndAirConditioningProductsMember
Construction Products [Member]  
Nature of business  
Number of reportable segments 2us-gaap_NumberOfReportableSegments
/ us-gaap_ProductOrServiceAxis
= cuo_ConstructionProductsMember