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SIGNIFICANT ACCOUNTING POLICIES AND DISCLOSURES (Details 7) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Jun. 02, 2018
Mar. 03, 2018
Dec. 02, 2017
Sep. 02, 2017
May 27, 2017
Feb. 25, 2017
Nov. 26, 2016
Aug. 27, 2016
Jun. 02, 2018
May 27, 2017
May 28, 2016
Numerator for Basic and Diluted Earnings Per Share:                      
Income (loss) from continuing operations $ 1,739 $ 527 $ 172 $ (112) $ (125) $ (1,431) $ (2,522) $ (2,850) $ 2,326 $ (6,928) $ (6,766)
Loss from discontinued operations, net of tax     1,496           1,496    
Undistributed losses, Basic                 (722) (9,959) (9,845)
Undistributed losses, Diluted                 (722) (9,959) (9,845)
Net loss $ 1,739 $ 527 $ 1,668 $ (112) $ (125) $ (1,431) $ (2,522) $ (2,850) 3,822 $ (6,928) $ (6,766)
Earnings Per Share, Basic and Diluted [Abstract]                      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount                   848 890
Common Class B [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Undistributed losses, Basic                 (109) $ (1,519) $ (1,478)
Undistributed losses, Diluted                 $ (109) $ (1,519) $ (1,478)
Denominator for Basic and Diluted Earnings Per Share:                      
Weighted Average Number of Shares Outstanding, Basic                 2,137 2,140 2,141
Weighted Average Number of Shares Outstanding, Diluted                 2,137 2,140 2,141
Earnings Per Share, Basic and Diluted [Abstract]                      
Earnings Per Share, Basic $ 0.12 $ 0.04 $ 0.12 $ (0.01) $ (0.01) $ (0.10) $ (0.18) $ (0.20) $ 0.27 $ (0.49) $ (0.47)
Earnings Per Share, Diluted 0.12 0.04 0.12 (0.01) (0.01) (0.10) (0.18) (0.20) $ 0.27 $ (0.49) $ (0.47)
Continuing Operations [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Undistributed losses, Basic                 $ (722) $ (9,959) $ (9,845)
Undistributed losses, Diluted                 (722) (9,959) (9,845)
Continuing Operations [Member] | Common Class B [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Undistributed losses, Basic                 (109) (1,519) (1,478)
Undistributed losses, Diluted                 $ (109) $ (1,519) $ (1,478)
Earnings Per Share, Basic and Diluted [Abstract]                      
Earnings Per Share, Basic                 $ 0.27 $ (0.49) $ (0.47)
Earnings Per Share, Diluted                 $ 0.27 $ (0.49) $ (0.47)
Discontinued Operations [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Undistributed losses, Basic                 $ (1,552) $ (3,031) $ (3,079)
Undistributed losses, Diluted                 (1,552) (3,031) (3,079)
Discontinued Operations [Member] | Common Class B [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Undistributed losses, Basic                 (235) (464) (464)
Undistributed losses, Diluted                 (234) (464) (464)
Common Stock [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Undistributed losses, Basic                 (613) (8,440) (8,367)
Undistributed losses, Diluted                 $ (613) $ (8,440) $ (8,367)
Denominator for Basic and Diluted Earnings Per Share:                      
Weighted Average Number of Shares Outstanding, Basic                 10,765 10,705 10,908
Weighted Average Number of Shares Outstanding, Diluted                 10,824 10,705 10,908
Earnings Per Share, Basic and Diluted [Abstract]                      
Earnings Per Share, Basic 0.14 0.04 0.13 (0.01) (0.01) (0.11) (0.20) (0.23) $ 0.30 $ (0.55) $ (0.53)
Earnings Per Share, Diluted $ 0.14 $ 0.04 $ 0.13 $ (0.01) $ (0.01) $ (0.11) $ (0.20) $ (0.23) $ 0.30 $ (0.55) $ (0.53)
Common Stock [Member] | Continuing Operations [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Undistributed losses, Basic                 $ (613) $ (8,440) $ (8,367)
Undistributed losses, Diluted                 $ (613) $ (8,440) $ (8,367)
Earnings Per Share, Basic and Diluted [Abstract]                      
Earnings Per Share, Basic                 $ 0.18 $ (0.55) $ (0.53)
Earnings Per Share, Diluted                 $ 0.18 $ (0.55) $ (0.53)
Common Stock [Member] | Discontinued Operations [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Undistributed losses, Basic                 $ (1,317) $ (2,567) $ (2,615)
Undistributed losses, Diluted                 (1,317) (2,567) (2,615)
Basic [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Income (loss) from continuing operations                 2,326 (6,928) (6,766)
Net loss                 2,326 (6,928) (6,766)
Basic [Member] | Common Class B [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Less dividends                 462 464 464
Basic [Member] | Continuing Operations [Member] | Common Class B [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Less dividends                 462 464 464
Basic [Member] | Discontinued Operations [Member] | Common Class B [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Less dividends                 462 464 464
Basic [Member] | Common Stock [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Less dividends                 2,586 2,567 2,615
Basic [Member] | Common Stock [Member] | Continuing Operations [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Less dividends                 2,586 2,567 2,615
Basic [Member] | Common Stock [Member] | Discontinued Operations [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Less dividends                 2,586 2,567 2,615
Diluted [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Income (loss) from continuing operations                 2,326 (6,928) (6,766)
Net loss                 $ 2,326 $ (6,928) $ (6,766)
Denominator for Basic and Diluted Earnings Per Share:                      
Effect of dilutive securities Dilutive stock options                 59    
Weighted Average Number of Shares Outstanding, Diluted                 12,961 12,845 13,049
Diluted [Member] | Common Class B [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Less dividends                 $ 462 $ 464 $ 464
Diluted [Member] | Continuing Operations [Member] | Common Class B [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Less dividends                 462 464 464
Diluted [Member] | Discontinued Operations [Member] | Common Class B [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Less dividends                 462 464 464
Diluted [Member] | Common Stock [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Less dividends                 2,586 2,567 2,615
Diluted [Member] | Common Stock [Member] | Continuing Operations [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Less dividends                 2,586 2,567 2,615
Diluted [Member] | Common Stock [Member] | Discontinued Operations [Member]                      
Numerator for Basic and Diluted Earnings Per Share:                      
Less dividends                 $ 2,586 $ 2,567 $ 2,615