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Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Feb. 29, 2020	Jun. 01, 2019
Allowance for accounts receivable	$ 194	$ 339
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred Stock, issued (in shares)	0	0
Common stock in treasury (in shares)	0	0
Common Stock
Common stock, par value (in dollars per share)	$ 0.05	$ 0.05
Common stock, issued (in shares)	11,038	10,957
Common stock, outstanding (in shares)	11,038	10,957
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

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Amount of allowance for credit loss on accounts receivable, classified as current.

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