Note 5 - Property, Equipment, Assets Held for Sale, Operating Leases, and Sale-leaseback Transactions (Details Textual) $ in Thousands		12 Months Ended
	Jul. 26, 2016	May 31, 2016 USD ($)	Jun. 02, 2015 USD ($)	Jun. 03, 2014 USD ($)
Accrued Liabilities, Rent and Other [Member]
Sale Leaseback Transaction, Deferred Gain, Net		$ 1,100	$ 1,100
Other Deferred Liabilities [Member]
Sale Leaseback Transactions Noncurrent Portion of Deferred Gain		10,900	11,900
Other Restaurant Operating Costs [Member]
Sale Leaseback Transaction, Current Period Gain Recognized		1,100	1,100	$ 1,100
Closure and Impairments [Member]
Operating Leases, Rent (Income) Expense Relating to Lease Reserves		3,600	1,200	5,700
Subsequent Event [Member]
Number of Franchise Restaurants Closed	10
Disposal Group, Including Discontinued Operation, Assets, Current		4,642	5,453
Property, Plant and Equipment, Disposals		6,700	9,500	14,000
Gain (Loss) on Disposition of Property Plant Equipment		900	1,700	1,500
Proceeds from Sale of Property Plant and Equipment, Net		7,600	$ 11,200	$ 15,400
Sale Leaseback Transaction Number of Restaurants				3
Sale Leaseback Transaction, Gross Proceeds, Investing Activities				$ 5,900
Sale Leaseback Transaction Costs				300
Sale Leaseback Transaction, Net Book Value				$ 4,800
Sale Leaseback Transaction Lease Terms				15 years
Sale Leaseback Transaction Lease Renewal Terms				20 years
Sale Leaseback Transaction, Deferred Gain, Gross				$ 800
Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals		4,300
Obligation for Future Rent and Other Lease-related Charges for Closed Restaurants		$ 900