Earnings Per Share (Detail) (USD $)	3 Months Ended	9 Months Ended
Mar. 01, 2014	Mar. 02, 2013	Mar. 01, 2014	Mar. 02, 2013
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Income from continuing operations	$ (112,000)	$ 586,000	$ 2,498,000	$ 1,901,000
Loss from discontinued operations, net of tax	(420,000)	(182,000)	(538,000)	(472,000)
Net income (loss)	(532,000)	404,000	1,960,000	1,429,000
Earnings Per Share, Basic and Diluted [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	512,064	282,564	512,064	282,564
Common Stock
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Net income (loss)
Denominator for Basic and Diluted Earnings Per Share [Abstract]
Weighted average shares, basic (in shares)	11,832,000	12,292,000	11,942,000	12,500,000
Weighted average shares, diluted (in shares)	14,140,000	15,165,000	14,335,000	15,455,000
Weighted average shares and shares under if-coverted method for diluted EPS, basic (in shares)	$ (0.01)	$ 0.04	$ 0.18	$ 0.13
Weighted average shares and shares under if-coverted method for diluted EPS, diluted (in shares)	$ (0.01)	$ 0.04	$ 0.17	$ 0.12
Earnings Per Share, Basic and Diluted [Abstract]
Net income per share, basic (in dollars per share)	$ (0.04)	$ 0.03	$ 0.14	$ 0.10
Net income per share, diluted (in dollars per share)	$ (0.04)	$ 0.03	$ 0.13	$ 0.09
Class B Common Stock
Denominator for Basic and Diluted Earnings Per Share [Abstract]
Weighted average shares, basic (in shares)	2,191,000	2,740,000	2,270,000	2,822,000
Weighted average shares, diluted (in shares)	2,191,000	2,740,000	2,270,000	2,822,000
Weighted average shares and shares under if-coverted method for diluted EPS, basic (in shares)	$ (0.01)	$ 0.04	$ 0.16	$ 0.11
Weighted average shares and shares under if-coverted method for diluted EPS, diluted (in shares)	$ (0.01)	$ 0.04	$ 0.16	$ 0.11
Earnings Per Share, Basic and Diluted [Abstract]
Net income per share, basic (in dollars per share)	$ (0.04)	$ 0.03	$ 0.13	$ 0.08
Net income per share, diluted (in dollars per share)	$ (0.04)	$ 0.03	$ 0.13	$ 0.08
Basic
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Undistributed basic earnings (losses)	(1,360)	(482)	(547)	(1,256)
Net income (loss)	(532)	404	1,966	1,429
Basic \| Common Stock
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Dividends	710	738	2,143	2,233
Undistributed basic earnings (losses)	(1,166)	(401)	(467)	(1,044)
Denominator for Basic and Diluted Earnings Per Share [Abstract]
Weighted average shares, basic (in shares)	11,832	12,292	11,942	12,500
Earnings Per Share, Basic and Diluted [Abstract]
Net income per share, basic (in dollars per share)	$ (0.04)	$ 0.03	$ 0.14	$ 0.10
Basic \| Class B Common Stock
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Dividends	118	148	370	452
Undistributed basic earnings (losses)	(194)	(81)	(80)	(212)
Denominator for Basic and Diluted Earnings Per Share [Abstract]
Weighted average shares and shares under if-coverted method for diluted EPS, basic (in shares)	$ 2,191	$ 2,740	$ 2,270	$ 2,822
Earnings Per Share, Basic and Diluted [Abstract]
Net income per share, basic (in dollars per share)	$ (0.04)	$ 0.03	$ 0.13	$ 0.08
Basic \| Continuing Operations
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Income from continuing operations	(112)	586	2,498	1,901
Undistributed basic earnings (losses)	(940)	(300)	(15)	(784)
Basic \| Continuing Operations \| Common Stock
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Dividends	710	738	2,143	2,233
Undistributed basic earnings (losses)	(806)	(250)	(13)	(652)
Earnings Per Share, Basic and Diluted [Abstract]
Net income per share, basic (in dollars per share)	$ (0.01)	$ 0.04	$ 0.18	$ 0.13
Basic \| Continuing Operations \| Class B Common Stock
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Dividends	118	148	370	452
Undistributed basic earnings (losses)	(134)	(50)	(2)	(132)
Earnings Per Share, Basic and Diluted [Abstract]
Net income per share, basic (in dollars per share)	$ (0.01)	$ 0.04	$ 0.16	$ 0.11
Basic \| Discontinued Operations
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Undistributed basic earnings (losses)	(1,248)	(1,068)	(3,045)	(3,157)
Loss from discontinued operations, net of tax	(420)	(182)	(532)	(472)
Basic \| Discontinued Operations \| Common Stock
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Dividends	710	738	2,143	2,233
Undistributed basic earnings (losses)	(1,070)	(890)	(2,600)	(2,624)
Earnings Per Share, Basic and Diluted [Abstract]
Net income per share, basic (in dollars per share)	$ (0.03)	$ (0.01)	$ (0.04)	$ (0.03)
Basic \| Discontinued Operations \| Class B Common Stock
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Dividends	118	148	370	452
Undistributed basic earnings (losses)	(178)	(178)	(445)	(533)
Earnings Per Share, Basic and Diluted [Abstract]
Net income per share, basic (in dollars per share)	$ (0.03)	$ (0.01)	$ (0.03)	$ (0.03)
Diluted
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Undistributed diluted earnings (losses)	(1,360)	(482)	(547)	(1,256)
Net income (loss)	(532)	404	1,966	1,429
Denominator for Basic and Diluted Earnings Per Share [Abstract]
Weighted average shares, diluted (in shares)	11,832	12,292	11,942	12,500
Weighted average shares and shares under if-coverted method for diluted EPS, diluted (in shares)	$ 2,191	$ 2,740	$ 2,270	$ 2,822
Effect of dilutive securities dilutive stock options (in shares)	117	133	123	133
Denominator for diluted EPS adjusted for weighted average shares and assumed conversions (in shares)	14,140	15,165	14,335	15,455
Diluted \| Common Stock
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Dividends	710	738	2,143	2,233
Undistributed diluted earnings (losses)	(1,166)	(402)	(468)	(1,046)
Earnings Per Share, Basic and Diluted [Abstract]
Net income per share, diluted (in dollars per share)	$ (0.04)	$ 0.03	$ 0.13	$ 0.09
Diluted \| Class B Common Stock
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Dividends	118	148	370	452
Undistributed diluted earnings (losses)	(194)	(80)	(79)	(210)
Earnings Per Share, Basic and Diluted [Abstract]
Net income per share, diluted (in dollars per share)	$ (0.04)	$ 0.03	$ 0.13	$ 0.08
Diluted \| Continuing Operations
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Income from continuing operations	(112)	586	2,498	1,901
Undistributed diluted earnings (losses)	(940)	(300)	(15)	(784)
Diluted \| Continuing Operations \| Common Stock
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Dividends	710	738	2,143	2,233
Undistributed diluted earnings (losses)	(806)	(250)	(13)	(653)
Earnings Per Share, Basic and Diluted [Abstract]
Net income per share, diluted (in dollars per share)	$ (0.01)	$ 0.04	$ 0.17	$ 0.12
Diluted \| Continuing Operations \| Class B Common Stock
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Dividends	118	148	370	452
Undistributed diluted earnings (losses)	(134)	(50)	(2)	(131)
Earnings Per Share, Basic and Diluted [Abstract]
Net income per share, diluted (in dollars per share)	$ (0.01)	$ 0.04	$ 0.16	$ 0.11
Diluted \| Discontinued Operations
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Undistributed diluted earnings (losses)	(1,248)	(1,068)	(3,045)	(3,157)
Loss from discontinued operations, net of tax	(420)	(182)	(532)	(472)
Diluted \| Discontinued Operations \| Common Stock
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Dividends	710	738	2,143	2,233
Undistributed diluted earnings (losses)	(1,070)	(891)	(2,604)	(2,629)
Earnings Per Share, Basic and Diluted [Abstract]
Net income per share, diluted (in dollars per share)	$ (0.03)	$ (0.01)	$ (0.04)	$ (0.03)
Diluted \| Discontinued Operations \| Class B Common Stock
Numerator for Basic and Diluted Earnings Per Share [Abstract]
Dividends	118	148	370	452
Undistributed diluted earnings (losses)	$ (178)	$ (177)	$ (441)	$ (528)
Earnings Per Share, Basic and Diluted [Abstract]
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