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Note I - Closure and Impairments Expense (Details) - Future Liabilites Associated with Closed Properties (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Dec. 02, 2014
Jun. 02, 2014
Future Liabilites Associated with Closed Properties [Abstract]    
Balance at June 3, 2014   $ 10,873rt_OperatingLeaseObligation
Closing expense including rent and other lease charges 761rt_ClosedRestaurantLeaseReserves  
Payments (2,309)rt_PaymentsClosedPropertyLeaseObligation  
Other (340)rt_OperatingLeaseObligationOtherAdjustments  
Balance at December 2, 2014 $ 8,985rt_OperatingLeaseObligation $ 10,873rt_OperatingLeaseObligation