Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended
	Aug. 30, 2014	Aug. 31, 2013
Net Sales	$ 34,699,000	$ 34,257,000
Cost of Sales	24,041,000	24,065,000
Gross profit	10,658,000	10,192,000
Selling, general, and administrative expenses	11,182,000	10,069,000
Gain on disposal of assets	(9,000)	0
Operating income (loss)	(533,000)	123,000
Other (income) expense:
Investment/interest income	(256,000)	(265,000)
Foreign exchange (gain) loss	(57,000)	106,000
Other, net	(2,000)	(30,000)
Total other income	(315,000)	(2,304,000)
Income (loss) from continuing operations before income taxes	(218,000)	2,427,000
Income tax provision (benefit)	(135,000)	448,000
Income (loss) from continuing operations	(83,000)	1,979,000
Loss from discontinued operations, net of tax	0	(11,000)
Net income (loss)	(83,000)	1,968,000
Foreign currency translation gain (loss), net of tax	(968,000)	425,000
Fair value adjustments on investments	25,000	1,000
Comprehensive income (loss)	(1,026,000)	2,394,000
Common Stock
Other (income) expense:
Net income (loss)
Foreign currency translation gain (loss), net of tax
Fair value adjustments on investments
Net income per common share-Basic:
Income from continuing operations	$ (0.01)	$ 0.14
Income (loss) from discontinued operations	$ 0.00	$ 0.00
Total net income per common share-Basic:	$ (0.01)	$ 0.14
Net income per Common share - Diluted:
Income from continuing operations	$ (0.01)	$ 0.14
Income (loss) from discontinued operations	$ 0.00	$ 0.00
Total net income per Common share - Diluted:	$ (0.01)	$ 0.14
Weighted average number of shares:
Common shares - Basic	11,822,000	12,127,000
Common shares - Diluted	11,822,000	14,688,000
Dividends per common share	$ 0.060	$ 0.060
Class B Common Stock
Net income per common share-Basic:
Income from continuing operations	$ (0.01)	$ 0.13
Income (loss) from discontinued operations	$ 0.00	$ 0.00
Total net income per common share-Basic:	$ (0.01)	$ 0.13
Net income per Common share - Diluted:
Income from continuing operations	$ (0.01)	$ 0.13
Income (loss) from discontinued operations	$ 0.00	$ 0.00
Total net income per Common share - Diluted:	$ (0.01)	$ 0.13
Weighted average number of shares:
Common shares - Basic	2,182,000	2,428,000
Common shares - Diluted	2,182,000	2,428,000
Dividends per common share	$ 0.054	$ 0.054
Anti-trust class action lawsuit settlement [Domain]
Other (income) expense:
Other, net	$ 0	$ (2,115,000)