Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Nov. 28, 2020	May 30, 2020
Allowance for accounts receivable	$ 256	$ 334
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred Stock, issued (in shares)	0	0
Common Stock
Common stock, par value (in dollars per share)	$ 0.05	$ 0.05
Common stock, issued (in shares)	11,111	11,038
Common stock, outstanding (in shares)	11,111	11,038
Common Class B
Common stock, par value (in dollars per share)	$ 0.05	$ 0.05
Common stock, issued (in shares)	2,097	2,097
Common stock, outstanding (in shares)	2,097	2,097