Consolidated Statement of Stockholders' Equity - 9 months ended Feb. 27, 2016 - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Common Class B [Member]	Par Value [Member]	Additional Paid In Capital	Common Stock in Treasury	Retained Earnings	Accumulated Other Comprehensive Income	Total
Beginning Balance at May. 30, 2015			$ 684	$ 63,252		$ 89,141	$ 3,575	$ 156,652
Beginning Balance (in shares) at May. 30, 2015	11,530	2,141
Comprehensive loss
Net loss						(6,611)		(6,611)
Foreign currency translation							(1,912)	(1,912)
Fair value adjustments on investments							(79)	(79)
Share-based compensation:
Stock options				434				434
Common stock:
Options exercised			1	141				142
Options exercised (shares)	28
Repurchase of common stock					$ (5,015)			(5,015)
Cancellation of treasury stock			(43)	(4,972)	$ 5,015
Cancellation of treasury stock (shares)	(855)
Other				(80)		(4)		(84)
Dividends paid to:
Common (per share)						(1,973)		(1,973)
Class B (per share)						(348)		(348)
Ending Balance at Feb. 27, 2016			$ 642	$ 58,775		$ 80,205	$ 1,584	$ 141,206
Ending Balance (in shares) at Feb. 27, 2016	10,703	2,141