INCOME TAXES (Details 4) - USD ($) $ in Thousands		12 Months Ended
		Jun. 02, 2018	May 27, 2018	May 27, 2017
Unrecognized Tax Benefits, beginning of period		$ 1,883	$ 1,883	$ 2,000
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions		138		75
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities		(1,883)		(75)
Unrecognized Tax Benefits, Decrease related to the expiration of statute of limitations				(117)
Unrecognized Tax Benefits, end of period		138		$ 1,883
Continuing Operations [Member]
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions		$ 138
Discontinued Operations [Member]
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	[1]		$ (1,883)

[1] Relates to an amended Illinois state income tax return related to the sale of RFPD.