Note 9 - Income Taxes - Rollforward of Deferred Tax Asset Valuation Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 06, 2017	May 31, 2016	Jun. 02, 2015
Beginning of fiscal year	$ (89,933)	$ (62,799)	$ (54,582)
End of fiscal year	(135,894)	(89,933)	(62,799)
Other Reductions [Member]
Changes in estimated realization of deferred tax assets	3,258	1,058	921
Continuing Operations [Member]
Changes in estimated realization of deferred tax assets	$ (49,219)	$ (28,192)	$ (9,138)