Calculation of Earnings Per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 02, 2019	Mar. 03, 2018	Mar. 02, 2019	Mar. 03, 2018
Numerator for Basic and Diluted Earnings Per Share:
Net (loss) income	$ (1,078)	$ 527	$ (951)	$ 2,083
(Loss) income from continuing operations	(1,078)	527	(951)	587
Undistributed losses - continuing operations, Basic	(1,849)	(236)	(3,256)	(1,697)
Undistributed losses - continuing operations, Diluted	(1,849)	(236)	(3,256)	(1,697)
Income from discontinued operations				1,496
Undistributed earnings (losses) - discontinued operations, Basic				(788)
Net (loss) income	(1,078)	527	(951)	2,083
Undistributed losses - continuing operations, Basic			(3,256)	(201)
Undistributed earnings (losses) - discontinued operations, Diluted				(788)
Undistributed losses - continuing operations, Diluted			(3,256)	(201)
Basic
Numerator for Basic and Diluted Earnings Per Share:
Net (loss) income	(1,078)	527	(951)	2,083
(Loss) income from continuing operations			(951)	587
Income from discontinued operations				1,496
Net (loss) income	(1,078)	527	(951)	2,083
Diluted
Numerator for Basic and Diluted Earnings Per Share:
Net (loss) income	(1,078)	527	(951)	2,083
(Loss) income from continuing operations			(951)	587
Income from discontinued operations				1,496
Net (loss) income	$ (1,078)	$ 527	$ (951)	$ 2,083
Denominator for basic and diluted Earnings Per Share:
Effect of dilutive securities dilutive stock options		80		40
Weighted Average Number of Shares Outstanding, Diluted	13,050	13,009	13,019	12,930
Common Class B
Numerator for Basic and Diluted Earnings Per Share:
Undistributed losses - continuing operations, Basic	$ (272)	$ (36)	$ (482)	$ (257)
Undistributed losses - continuing operations, Diluted	$ (272)	$ (36)	(482)	(257)
Undistributed earnings (losses) - discontinued operations, Basic				(120)
Undistributed losses - continuing operations, Basic			(482)	(30)
Undistributed earnings (losses) - discontinued operations, Diluted				(120)
Undistributed losses - continuing operations, Diluted			$ (482)	$ (30)
Denominator for basic and diluted Earnings Per Share:
Weighted Average Number of Shares Outstanding, Basic	2,097	2,137	2,108	2,137
Weighted Average Number of Shares Outstanding, Diluted	2,097	2,137	2,108	2,137
Net (loss) income per share:
Earnings Per Share, Basic	$ (0.08)	$ 0.04	$ (0.07)	$ 0.15
Earnings Per Share, Diluted	(0.08)	0.04	(0.07)	0.15
(Loss) income from continuing operations per share:
(Loss) income from continuing operations, Basic	(0.08)	0.04	(0.07)	0.04
(Loss) income from continuing operations, Diluted	$ (0.08)	$ 0.04	$ (0.07)	0.04
Income from discontinued operations per share:
Income (loss) from discontinuing operations, Basic				0.11
Income from discontinued operations, Diluted				$ 0.11
Common Class B | Basic
Numerator for Basic and Diluted Earnings Per Share:
Less dividends			$ 342	$ 346
Common Class B | Basic | Continuing Operations
Numerator for Basic and Diluted Earnings Per Share:
Less dividends	$ 114	$ 115	342	346
Common Class B | Basic | Discontinued Operations
Numerator for Basic and Diluted Earnings Per Share:
Less dividends				346
Common Class B | Diluted
Numerator for Basic and Diluted Earnings Per Share:
Less dividends			342	346
Common Class B | Diluted | Continuing Operations
Numerator for Basic and Diluted Earnings Per Share:
Less dividends	114	115	342	346
Common Class B | Diluted | Discontinued Operations
Numerator for Basic and Diluted Earnings Per Share:
Less dividends				346
Common Stock
Numerator for Basic and Diluted Earnings Per Share:
Undistributed losses - continuing operations, Basic	(1,577)	(200)	(2,774)	(1,440)
Undistributed losses - continuing operations, Diluted	$ (1,577)	$ (200)	(2,774)	(1,440)
Undistributed earnings (losses) - discontinued operations, Basic				(668)
Undistributed losses - continuing operations, Basic			(2,774)	(171)
Undistributed earnings (losses) - discontinued operations, Diluted				(668)
Undistributed losses - continuing operations, Diluted			$ (2,774)	$ (171)
Denominator for basic and diluted Earnings Per Share:
Weighted Average Number of Shares Outstanding, Basic	10,953	10,792	10,911	10,753
Weighted Average Number of Shares Outstanding, Diluted	10,953	10,792	10,911	10,753
Net (loss) income per share:
Earnings Per Share, Basic	$ (0.08)	$ 0.04	$ (0.07)	$ 0.17
Earnings Per Share, Diluted	(0.08)	0.04	(0.07)	0.17
(Loss) income from continuing operations per share:
(Loss) income from continuing operations, Basic	(0.08)	0.04	(0.07)	0.05
(Loss) income from continuing operations, Diluted	$ (0.08)	$ 0.04	$ (0.07)	0.05
Income from discontinued operations per share:
Income (loss) from discontinuing operations, Basic				0.12
Income from discontinued operations, Diluted				$ 0.12
Common Stock | Basic
Numerator for Basic and Diluted Earnings Per Share:
Less dividends			$ 1,963	$ 1,938
Common Stock | Basic | Continuing Operations
Numerator for Basic and Diluted Earnings Per Share:
Less dividends	$ 657	$ 648	1,963	1,938
Common Stock | Basic | Discontinued Operations
Numerator for Basic and Diluted Earnings Per Share:
Less dividends				1,938
Common Stock | Diluted
Numerator for Basic and Diluted Earnings Per Share:
Less dividends			1,963	1,938
Common Stock | Diluted | Continuing Operations
Numerator for Basic and Diluted Earnings Per Share:
Less dividends	$ 657	$ 648	$ 1,963	1,938
Common Stock | Diluted | Discontinued Operations
Numerator for Basic and Diluted Earnings Per Share:
Less dividends				$ 1,938