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Note 7 - Closures and Impairments Expense (Details) - Future Liabilites Associated with Closed Properties
$ in Thousands
 3 Months Ended
Sep. 01, 2015
USD ($)
Future Liabilites Associated with Closed Properties [Abstract]  
Balance $ 7,051
Closing expense including rent and other lease charges 604
Payments (627)
Other adjustments (368)
Balance $ 6,660