Consolidated Statement of Stockholders' Equity (USD $) Share data in Thousands, unless otherwise specified	Total	Common Stock	Class B Common Stock	Common Stock	Class B Common Stock	Par Value	Additional Paid-in Capital	Common Stock in Treasury	Retained Earnings	Retained Earnings Common Stock	Retained Earnings Class B Common Stock	Accumulated Other Comprehensive Income (loss)
Beginning Balance at May. 31, 2014	$ 174,845,000					$ 702,000	$ 66,141,000	$ (14,000)	$ 97,959,000			$ 10,057,000
Beginning Balance (in shares) at May. 31, 2014				11,835	2,191
Net income (loss)	(1,140,000)								(1,140,000)
Foreign currency translation	(3,961,000)											(3,961,000)
Fair value adjustments on investments	25,000											25,000
Share-based compensation:
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	0						0
Stock options	385,000						385,000
Common stock:
Options Exercised, in shares				44
Options Exercised	288,000					2,000	286,000
Canceled Shares					(50)
Stock Issued During Period, Shares, Conversion of Convertible Securities				50
Repurchase of common stock	(2,640,000)							(2,640,000)
Treasury Stock, Shares, Acquired				(261)
Treasury stock					0	(13,000)	(2,584,000)	2,597,000
Stockholders' Equity, Other Shares				(1)
Other	(2,000)					(1,000)		0				(1,000)
Dividends paid
Dividends declared to common stock		(1,411,000)	(234,000)							(1,411,000)	(234,000)
Ending Balance at Nov. 29, 2014	$ 166,155,000					$ 690,000	$ 64,228,000	$ (57,000)	$ 95,174,000			$ 6,120,000
Ending Balance (in shares) at Nov. 29, 2014				11,667	2,141