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Stock Based Compensation - Plans - (Details)
May 02, 2015
1987 Plan  
Restricted Shares Authorized And Available For Grant  
Options And/Or Restrcited Stock Initially Authorized 5,850,000cato_OptionsAndOrRestrictedStockInitiallyAuthorized
/ us-gaap_PlanNameAxis
= cato_StockPlan1987MemberMember
Options And Or Restricted Stock Available For Grant 0cato_OptionsAndOrRestrictedStockAvailableForGrant
/ us-gaap_PlanNameAxis
= cato_StockPlan1987MemberMember
2004 Plan  
Restricted Shares Authorized And Available For Grant  
Options And/Or Restrcited Stock Initially Authorized 1,350,000cato_OptionsAndOrRestrictedStockInitiallyAuthorized
/ us-gaap_PlanNameAxis
= cato_StockPlan2004MemberMember
Options And Or Restricted Stock Available For Grant 0cato_OptionsAndOrRestrictedStockAvailableForGrant
/ us-gaap_PlanNameAxis
= cato_StockPlan2004MemberMember
2013 Plan  
Restricted Shares Authorized And Available For Grant  
Options And/Or Restrcited Stock Initially Authorized 1,500,000cato_OptionsAndOrRestrictedStockInitiallyAuthorized
/ us-gaap_PlanNameAxis
= cato_Stockplan2013membermemberMember
Options And Or Restricted Stock Available For Grant 1,130,609cato_OptionsAndOrRestrictedStockAvailableForGrant
/ us-gaap_PlanNameAxis
= cato_Stockplan2013membermemberMember