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Derivatives and Hedging Activities (Details Textual) - USD ($)
3 Months Ended
Aug. 27, 2015
May. 28, 2015
Feb. 28, 2013
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Derivative, Notional Amount $ 25,000,000    
Description Of Derivative Variable Rate Basis one-month LIBOR    
Fair Value, Inputs, Level 2 [Member]      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Interest Rate Fair Value Hedge Liability at Fair Value $ 90,000 $ 28,000  
Interest Rate Swap [Member]      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Derivative, Amount of Hedged Item     $ 25,000,000
Derivative, Fixed Interest Rate     0.96%
Derivative, Variable Interest Rate 0.25%