Unaudited Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Feb. 25, 2023	May 28, 2022
Allowance for accounts receivable	$ 189	$ 186
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)	12,085	11,649
Common stock, outstanding (in shares)	12,085	11,649
Common Class B
Common stock, par value (in dollars per share)	$ 0.05	$ 0.05
Common stock, issued (in shares)	2,052	2,053
Common stock, outstanding (in shares)	2,052	2,053