2.4.0.8128 - Disclosure - Estimated Useful Lives and Accumulated Depreciation for Assets (Detail)truefalsefalse1false falsefalseP01_01_2013To06_30_2013_BuildingMemberusgaapPropertyPlantAndEquipmentByTypeAxishttp://www.sec.gov/CIK0001108967duration2013-01-01T00:00:002013-06-30T00:00:001false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse1false truefalseP01_01_2013To06_30_2013_BuildingMemberusgaapPropertyPlantAndEquipmentByTypeAxishttp://www.sec.gov/CIK0001108967duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseBuildingsus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_BuildingMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMembernanafalse0Buildings2true 3cui_PropertyPlantAndEquipmentEstimatedUsefulLivesLineItemscui_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant and Equipment Estimated Useful Lives [Line Items]3false 4us-gaap_PropertyPlantAndEquipmentUsefulLifeus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse0039 yearsfalsefalsefalsexbrli:durationItemTypenaUseful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.No definition available.false0Estimated Useful Life4false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2false truefalseP01_01_2013To06_30_2013_FurnitureFixturesAndEquipmentMemberusgaapPropertyPlantAndEquipmentByTypeAxis_MinimumMemberusgaapRangeAxishttp://www.sec.gov/CIK0001108967duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseFurniture and equipmentus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldicui_FurnitureFixturesAndEquipmentMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberfalsefalseMinimumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MinimumMemberus-gaap_RangeAxisexplicitMembernanafalse0Furniture and equipment | Minimum5true 3cui_PropertyPlantAndEquipmentEstimatedUsefulLivesLineItemscui_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant and Equipment Estimated Useful Lives [Line Items]6false 4us-gaap_PropertyPlantAndEquipmentUsefulLifeus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse003 yearsfalsefalsefalsexbrli:durationItemTypenaUseful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. 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Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.No definition available.false0Estimated Useful Life10false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse4false truefalseP01_01_2013To06_30_2013_MinimumMemberusgaapRangeAxis_VehiclesMemberusgaapPropertyPlantAndEquipmentByTypeAxishttp://www.sec.gov/CIK0001108967duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseVehiclesus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_VehiclesMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberfalsefalseMinimumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MinimumMemberus-gaap_RangeAxisexplicitMembernanafalse0Vehicles | Minimum11true 3cui_PropertyPlantAndEquipmentEstimatedUsefulLivesLineItemscui_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant and Equipment Estimated Useful Lives [Line Items]12false 4us-gaap_PropertyPlantAndEquipmentUsefulLifeus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse003 yearsfalsefalsefalsexbrli:durationItemTypenaUseful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. 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