Note 7 - Closures and Impairments Expense (Details) - Closures and Impairments Expense - USD ($) $ in Thousands	3 Months Ended
	Sep. 01, 2015	Sep. 02, 2014
Note 7 - Closures and Impairments Expense (Details) - Closures and Impairments Expense [Line Items]
Closure and Impairment	$ 2,712	$ 1,482
Closed restaurant lease reserves	604
Continuing Operations [Member]
Note 7 - Closures and Impairments Expense (Details) - Closures and Impairments Expense [Line Items]
Closure and Impairment	2,712	1,482
Gain on sale of surplus properties	(590)	(273)
Closed restaurant lease reserves	604	466
Other Closing Expense [Member] | Continuing Operations [Member]
Note 7 - Closures and Impairments Expense (Details) - Closures and Impairments Expense [Line Items]
Closure and Impairment	121	233
Property [Member] | Continuing Operations [Member]
Note 7 - Closures and Impairments Expense (Details) - Closures and Impairments Expense [Line Items]
Closure and Impairment	$ 2,577	$ 1,056