Note I - Closure and Impairments Expense (Details) (USD $) In Thousands, unless otherwise specified	Mar. 03, 2015	Jun. 03, 2014
Note I - Closure and Impairments Expense (Details) [Line Items]
Operating Lease Obligation	$ 7,834rt_OperatingLeaseObligation	$ 10,873rt_OperatingLeaseObligation
Rent and Other [Member]
Note I - Closure and Impairments Expense (Details) [Line Items]
Operating Lease Obligation	$ 7,700	$ 10,500

Sum of the carrying values as of the balance sheet date of the lease obligations for closed restaurants.

No definition available.

Name:	rt_OperatingLeaseObligation
Namespace Prefix:	rt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant