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Common Stock Repurchase Program (Detail) (USD $)
 9 Months Ended
Feb. 01, 2015
Jan. 26, 2014
Feb. 25, 2014
Stockholders Equity Note [Line Items]      
Cost of common stock repurchased $ 745,000us-gaap_StockRepurchasedAndRetiredDuringPeriodValue    
Common Stock      
Stockholders Equity Note [Line Items]      
Common stock repurchased 43,014us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		    
Cost of common stock repurchased 2,000us-gaap_StockRepurchasedAndRetiredDuringPeriodValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		    
Common Stock Repurchase Program February 25, 2014 [Member] | Common Stock      
Stockholders Equity Note [Line Items]      
Authorization amount for repurchase of common stock 4,300,000us-gaap_StockRepurchaseProgramAuthorizedAmount1
/ us-gaap_ShareRepurchaseProgramAxis
= cfi_StockRepurchaseProgramMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		   5,000,000us-gaap_StockRepurchaseProgramAuthorizedAmount1
/ us-gaap_ShareRepurchaseProgramAxis
= cfi_StockRepurchaseProgramMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
Common stock repurchased 43,014us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
/ us-gaap_ShareRepurchaseProgramAxis
= cfi_StockRepurchaseProgramMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		 0us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
/ us-gaap_ShareRepurchaseProgramAxis
= cfi_StockRepurchaseProgramMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		  
Cost of common stock repurchased $ 745,000us-gaap_StockRepurchasedAndRetiredDuringPeriodValue
/ us-gaap_ShareRepurchaseProgramAxis
= cfi_StockRepurchaseProgramMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember