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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
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May 28, 2016 | Feb. 27, 2016 | Nov. 28, 2015 | Aug. 29, 2015 | May 30, 2015 | Feb. 28, 2015 | Nov. 29, 2014 | Aug. 30, 2014 | May 28, 2016 | May 30, 2015 | May 31, 2014
Denominator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Weighted Average Number of Shares Outstanding, Diluted |  |  |  |  |  |  |  |  | 13,049 | 13,833 | 14,165
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements |  |  |  |  |  |  |  |  | 0 | 0 | 0
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Continuing Operations Attributable to Parent | $ (155) | $ (2,926) | $ (2,286) | $ (1,399) | $ (2,103) | $ (2,198) | $ (1,144) | $ (83) | $ (6,766) | $ (5,528) | $ (345)
Undistributed losses, Basic |  |  |  |  |  |  |  |  | (9,845) | (8,819) | (3,856)
Undistributed losses, Diluted |  |  |  |  |  |  |  |  | (9,845) | (8,819) | (3,856)
Net loss | $ (155) | $ (2,926) | $ (2,286) | $ (1,399) | $ (2,221) | $ (2,198) | $ (1,057) | $ (83) | $ (6,766) | $ (5,559) | $ (515)
Earnings Per Share, Basic and Diluted [Abstract] |  |  |  |  |  |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount |  |  |  |  |  |  |  |  | 890 | 881 | 489
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Denominator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Weighted Average Number of Shares Outstanding, Basic |  |  |  |  |  |  |  |  | 10,908 | 11,682 | 11,915
Weighted Average Number of Shares Outstanding, Diluted |  |  |  |  |  |  |  |  | 10,908 | 11,682 | 11,915
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Undistributed losses, Basic |  |  |  |  |  |  |  |  |  | $ (7,565) | $ (3,296)
Undistributed losses, Diluted |  |  |  |  |  |  |  |  |  | $ (7,565) | $ (3,296)
Earnings Per Share, Basic and Diluted [Abstract] |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic |  |  |  |  |  |  |  |  | $ (0.53) | $ (0.41) | $ (0.04)
Earnings Per Share, Diluted |  |  |  |  |  |  |  |  | $ (0.53) | $ (0.41) | $ (0.04)
Common Class B [Member] |  |  |  |  |  |  |  |  |  |  |
Denominator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Weighted Average Number of Shares Outstanding, Basic |  |  |  |  |  |  |  |  | 2,141 | 2,151 | 2,250
Weighted Average Number of Shares Outstanding, Diluted |  |  |  |  |  |  |  |  | 2,141 | 2,151 | 2,250
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Undistributed losses, Basic |  |  |  |  |  |  |  |  |  | $ (1,254) | $ (560)
Undistributed losses, Diluted |  |  |  |  |  |  |  |  |  | $ (1,254) | $ (560)
Earnings Per Share, Basic and Diluted [Abstract] |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic |  |  |  |  |  |  |  |  | $ (0.47) | $ (0.36) | $ (0.03)
Earnings Per Share, Diluted |  |  |  |  |  |  |  |  | $ (0.47) | $ (0.36) | $ (0.03)
Common Class B [Member] |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic and Diluted [Abstract] |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic | $ (0.01) | $ (0.21) | $ (0.16) | $ (0.10) | $ (0.14) | $ (0.15) | $ (0.06) | $ (0.01) |  |  |
Earnings Per Share, Diluted | (0.01) | (0.21) | (0.16) | (0.10) | (0.14) | (0.15) | (0.06) | (0.01) |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic and Diluted [Abstract] |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic | (0.01) | (0.23) | (0.18) | (0.10) | (0.17) | (0.16) | (0.07) | (0.01) |  |  |
Earnings Per Share, Diluted | $ (0.01) | $ (0.23) | $ (0.18) | $ (0.10) | $ (0.17) | $ (0.16) | $ (0.07) | $ (0.01) |  |  |
Continuing Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Undistributed losses, Basic |  |  |  |  |  |  |  |  | $ (9,845) | $ (8,788) | $ (3,686)
Undistributed losses, Diluted |  |  |  |  |  |  |  |  | (9,845) | (8,788) | (3,686)
Continuing Operations [Member] | Common Class B [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Undistributed losses, Basic |  |  |  |  |  |  |  |  | (1,478) | (1,249) | (535)
Undistributed losses, Diluted |  |  |  |  |  |  |  |  | $ (1,478) | $ (1,249) | $ (535)
Earnings Per Share, Basic and Diluted [Abstract] |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic |  |  |  |  |  |  |  |  | $ (0.47) | $ (0.36) | $ (0.02)
Earnings Per Share, Diluted |  |  |  |  |  |  |  |  | $ (0.47) | $ (0.36) | $ (0.02)
Continuing Operations [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Undistributed losses, Basic |  |  |  |  |  |  |  |  | $ (8,367) | $ (7,539) | $ (3,151)
Undistributed losses, Diluted |  |  |  |  |  |  |  |  | $ (8,367) | $ (7,539) | $ (3,151)
Earnings Per Share, Basic and Diluted [Abstract] |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic |  |  |  |  |  |  |  |  | $ (0.53) | $ (0.41) | $ (0.03)
Earnings Per Share, Diluted |  |  |  |  |  |  |  |  | $ (0.53) | $ (0.41) | $ (0.03)
Discontinued Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Undistributed losses, Basic |  |  |  |  |  |  |  |  | $ (3,079) | $ (3,291) | $ (3,511)
Undistributed losses, Diluted |  |  |  |  |  |  |  |  | (3,079) | (3,291) | (3,511)
Discontinued Operations [Member] | Common Class B [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Undistributed losses, Basic |  |  |  |  |  |  |  |  | (464) | (468) | (510)
Undistributed losses, Diluted |  |  |  |  |  |  |  |  | (464) | $ (468) | $ (510)
Earnings Per Share, Basic and Diluted [Abstract] |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic |  |  |  |  |  |  |  |  |  | $ (0.01) | $ (0.01)
Earnings Per Share, Diluted |  |  |  |  |  |  |  |  |  | $ (0.01) | $ (0.01)
Discontinued Operations [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Undistributed losses, Basic |  |  |  |  |  |  |  |  | (2,615) | $ (2,823) | $ (3,001)
Undistributed losses, Diluted |  |  |  |  |  |  |  |  | (2,615) | $ (2,823) | $ (3,001)
Earnings Per Share, Basic and Diluted [Abstract] |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic |  |  |  |  |  |  |  |  |  | $ (0.01) | $ (0.01)
Earnings Per Share, Diluted |  |  |  |  |  |  |  |  |  | $ (0.01) | $ (0.01)
Basic [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net loss |  |  |  |  |  |  |  |  | (6,766) | $ (5,559) | $ (515)
Basic [Member] | Common Class B [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  | 464 | 488 | 466
Basic [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  | 2,615 | 2,794 | 2,853
Basic [Member] | Continuing Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Continuing Operations Attributable to Parent |  |  |  |  |  |  |  |  | (6,766) | (5,528) | (345)
Basic [Member] | Continuing Operations [Member] | Common Class B [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  | 464 | 466 | 488
Basic [Member] | Continuing Operations [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  | 2,615 | 2,794 | 2,853
Basic [Member] | Discontinued Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Continuing Operations Attributable to Parent |  |  |  |  |  |  |  |  | 0 | (31) | (170)
Basic [Member] | Discontinued Operations [Member] | Common Class B [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  | 464 | 466 | 488
Basic [Member] | Discontinued Operations [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  | 2,615 | 2,794 | 2,853
Diluted [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net loss |  |  |  |  |  |  |  |  | (6,766) | (5,559) | (515)
Diluted [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  |  | 2,794 |
Diluted [Member] | Common Class B [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  | 464 | 488 | 466
Diluted [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  | 2,615 |  | 2,853
Diluted [Member] | Continuing Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Continuing Operations Attributable to Parent |  |  |  |  |  |  |  |  | (6,766) | (5,528) | (345)
Diluted [Member] | Continuing Operations [Member] | Common Class B [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  | 464 | 466 | 488
Diluted [Member] | Continuing Operations [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  | 2,615 | 2,794 | 2,853
Diluted [Member] | Discontinued Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Continuing Operations Attributable to Parent |  |  |  |  |  |  |  |  | 0 | (31) | (170)
Diluted [Member] | Discontinued Operations [Member] | Common Class B [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  | 464 | 466 | 488
Diluted [Member] | Discontinued Operations [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Numerator for Basic and Diluted Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  | $ 2,615 | $ 2,794 | $ 2,853

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