Audited Consolidated Statements of Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	May 27, 2017	May 28, 2016	May 30, 2015
Net sales	$ 136,872	$ 142,016	$ 136,957
Cost of sales	92,989	97,181	95,819
Gross profit	43,883	44,835	41,138
Selling, general, and administrative expenses	49,854	51,632	49,229
Gain on disposal of business	(209)
Gain on disposal of assets		(244)	(5)
Operating loss	(5,762)	(6,553)	(8,086)
Other (income) expense:
Investment/interest income	(234)	(562)	(999)
Foreign exchange (gain) loss	612	212	(185)
Other, net	(24)	17	92
Total other (income), expense	354	(333)	(1,092)
Loss from continuing operations before income taxes	(6,116)	(6,220)	(6,994)
Income tax provision (benefit)	812	546	(1,466)
Loss from continuing operations	(6,928)	(6,766)	(5,528)
Loss from discontinued operations, net of tax			(31)
Net loss	(6,928)	(6,766)	(5,559)
Foreign currency translation gain (loss), net of tax	90	(759)	(6,504)
Fair value adjustments on investments gain (loss)	54	(44)	22
Comprehensive loss	$ (6,784)	$ (7,569)	$ (12,041)
Weighted average number of shares:
Common shares - Diluted	12,845	13,049	13,833
Common Class B [Member]
Loss per Common share - Basic:
Loss from continuing operations	$ (0.49)	$ (0.47)	$ (0.36)
Total loss per Common share - Basic:	(0.49)	(0.47)	(0.36)
Loss per Common share - Diluted:
Loss from continuing operations	(0.49)	(0.47)	(0.36)
Total loss per common share - Diluted	$ (0.49)	$ (0.47)	$ (0.36)
Weighted average number of shares:
Common shares - Basic	2,140	2,141	2,151
Common shares - Diluted	2,140	2,141	2,151
Dividends per share	$ 0.22	$ 0.22	$ 0.22
Common Stock [Member]
Loss per Common share - Basic:
Loss from continuing operations	(0.55)	(0.53)	(0.41)
Total loss per Common share - Basic:	(0.55)	(0.53)	(0.41)
Loss per Common share - Diluted:
Loss from continuing operations	(0.55)	(0.53)	(0.41)
Total loss per common share - Diluted	$ (0.55)	$ (0.53)	$ (0.41)
Weighted average number of shares:
Common shares - Basic	10,705	10,908	11,682
Common shares - Diluted	10,705	10,908	11,682
Dividends per share	$ 0.24	$ 0.24	$ 0.24