Significant Accounting Policies and Disclosures - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	May 28, 2022	Feb. 26, 2022	Nov. 27, 2021	Aug. 28, 2021	May 29, 2021	Feb. 27, 2021	Nov. 28, 2020	Aug. 29, 2020	May 28, 2022	May 29, 2021	May 30, 2020
Numerator for Basic and Diluted Earnings Per Share:
Net income (loss)	$ 8,283	$ 2,887	$ 4,122	$ 2,635	$ 1,885	$ 228	$ 689	$ (1,147)	$ 17,927	$ 1,655	$ (1,838)
Undistributed earnings (loss)									14,734	(1,467)	(4,939)
Undistributed earnings (loss)									$ 14,734	$ (1,467)	$ (4,939)
Denominator for basic and diluted Earnings Per Share:
Effect of dilutive securities dilutive stock options									430	59
Weighted Average Number of Shares Outstanding, Diluted									11,825	11,164	11,026
Basic
Numerator for Basic and Diluted Earnings Per Share:
Net income (loss)									$ 17,927	$ 1,655	$ (1,838)
Diluted
Numerator for Basic and Diluted Earnings Per Share:
Net income (loss)									17,927	1,655	(1,838)
Common Stock
Numerator for Basic and Diluted Earnings Per Share:
Undistributed earnings (loss)									12,655	(1,254)	(4,217)
Undistributed earnings (loss)									$ 12,720	$ (1,255)	$ (4,217)
Denominator for basic and diluted Earnings Per Share:
Weighted Average Number of Shares Outstanding, Basic									11,395	11,105	11,026
Weighted Average Number of Shares Outstanding, Diluted									11,825	11,164	11,026
Net income (loss) per share:
Earnings Per Share, Basic	$ 0.62	$ 0.22	$ 0.31	$ 0.20	$ 0.14	$ 0.02	$ 0.05	$ (0.09)	$ 1.35	$ 0.13	$ (0.14)
Net income (loss) per share:
Earnings Per Share, Diluted	0.59	0.21	0.30	0.20	0.14	0.02	0.05	(0.09)	$ 1.31	$ 0.13	$ (0.14)
Common Stock | Basic
Numerator for Basic and Diluted Earnings Per Share:
Less dividends									$ 2,745	$ 2,669	$ 2,648
Common Stock | Diluted
Numerator for Basic and Diluted Earnings Per Share:
Less dividends									2,745	2,669	2,648
Common Class B
Numerator for Basic and Diluted Earnings Per Share:
Undistributed earnings (loss)									2,079	(213)	(722)
Undistributed earnings (loss)									$ 2,014	$ (212)	$ (722)
Denominator for basic and diluted Earnings Per Share:
Weighted Average Number of Shares Outstanding, Basic									2,080	2,097	2,097
Weighted Average Number of Shares Outstanding, Diluted									2,080	2,097	2,097
Net income (loss) per share:
Earnings Per Share, Basic	0.55	0.19	0.28	0.18	0.13	0.02	0.05	(0.08)	$ 1.21	$ 0.11	$ (0.13)
Net income (loss) per share:
Earnings Per Share, Diluted	$ 0.54	$ 0.19	$ 0.27	$ 0.18	$ 0.13	$ 0.02	$ 0.05	$ (0.08)	$ 1.18	$ 0.11	$ (0.13)
Common Class B | Basic
Numerator for Basic and Diluted Earnings Per Share:
Less dividends									$ 448	$ 453	$ 453
Common Class B | Diluted
Numerator for Basic and Diluted Earnings Per Share:
Less dividends									$ 448	$ 453	$ 453