CALCULATION OF EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 02, 2017	Aug. 27, 2016
Numerator for Basic and Diluted Earnings Per Share:
Net Loss	$ (112)	$ (2,850)
Undistributed losses	(870)	(3,607)
Undistributed losses, Diluted	$ (870)	$ (3,607)
Denominator for Basic and Diluted Earnings Per Share:
Weighted Average Number of Shares Outstanding, Diluted	12,849	12,844
Common Stock [Member]
Numerator for Basic and Diluted Earnings Per Share:
Less dividends	$ 643	$ 641
Undistributed losses	(738)	(3,057)
Undistributed losses, Diluted	$ (738)	$ (3,057)
Denominator for Basic and Diluted Earnings Per Share:
Weighted Average Number of Shares Outstanding, Basic	10,712	10,703
Weighted Average Number of Shares Outstanding, Diluted	2,137	2,141
Earnings Per Share, Basic and Diluted [Abstract]
Earnings Per Share, Basic	$ (0.01)	$ (0.23)
Earnings Per Share, Diluted	$ (0.01)	$ (0.23)
Class B Common [Member]
Numerator for Basic and Diluted Earnings Per Share:
Less dividends	$ 115	$ 116
Undistributed losses	(132)	(550)
Undistributed losses, Diluted	$ (132)	$ (550)
Denominator for Basic and Diluted Earnings Per Share:
Weighted Average Number of Shares Outstanding, Basic	10,712	10,703
Weighted Average Number of Shares Outstanding, Diluted	2,137	2,141
Earnings Per Share, Basic and Diluted [Abstract]
Earnings Per Share, Basic	$ (0.01)	$ (0.20)
Earnings Per Share, Diluted	$ (0.01)	$ (0.20)