Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Jun. 01, 2013	Jun. 02, 2012	May 28, 2011
Summary Of Significant Accounting Policies [Line Items]
Allowance for doubtful accounts	$ 1,092,000	$ 1,058,000
Finished Goods Included in inventories	31,600,000	31,800,000
Raw material and Work in progress included in inventories	2,400,000	2,900,000
Inventory reserve	400,000	400,000	1,100,000
Investment in time deposits and certificate of deposits ("CD")	44,000,000	115,300,000
Investment in time deposits and certificate of deposits ("CD"), current	38,971,000	105,009,000
Investment in time deposits and certificate of deposits ("CD"), non current	5,000,000	10,300,000
Available-for-sale	400,000	400,000
Proceeds From sale of available-for-sale securities	200,000	200,000	200,000
Depreciation expense	1,000,000	1,100,000	1,200,000
Goodwill	1,519,000	1,261,000
Other non-current liabilities	1,287,000	1,213,000
Share-based compensation expense	619,000	481,000	1,188,000
Stock options, contractual term	6 years 8 months 12 days
Stock options exercised	31,000	121,000	699,000
Cash received from exercise of stock options	200,000
Total intrinsic value of options exercised	100,000	600,000	2,800,000
Weighted average fair value of stock option grants	$ 4.75	$ 5.83	$ 6.72
Total unrecognized compensation expense related to unvested stock options	2,100,000
Total unrecognized compensation expense related to unvested stock options, weighted average remaining period	5 years
Total grant date fair value of stock options vested	700,000
Foreign currency translation gain/loss	800,000	100,000	600,000
Preferred stock shares, authorized	5,000,000
Common stock options anti-dilutive	280,764,000	272,864,000	237,064,000
Powerlink Specialist Electronics Support Limited
Summary Of Significant Accounting Policies [Line Items]
Goodwill	1,300,000
D and C Import-Export Inc.
Summary Of Significant Accounting Policies [Line Items]
Goodwill	200,000
Maximum
Summary Of Significant Accounting Policies [Line Items]
Gross realized gains and losses on sale of available-for-sale securities	100,000	100,000	100,000
Net unrealized holding losses on sale of available-for-sale securities	$ 100,000	$ 100,000	$ 100,000
Common Stock
Summary Of Significant Accounting Policies [Line Items]
Stock options exercised	31,000	121,000	700,000
Common stock shares, authorized	30,000,000
Class B Common Stock
Summary Of Significant Accounting Policies [Line Items]
Common stock shares, authorized	10,000,000
Number of votes for Class B common stock	10
Cash dividends Class A common stock	90.00%
Employee Stock Option
Summary Of Significant Accounting Policies [Line Items]
Stock options, vesting period	5 years
Stock options, contractual term	10 years
Two Thousand Eleven Stock Incentive Compensation Plan
Summary Of Significant Accounting Policies [Line Items]
Share-based compensation, shares reserved for future issuance	444,000
Share-based compensation, exercisable period	5 years
Two Thousand Eleven Stock Incentive Compensation Plan | Maximum
Summary Of Significant Accounting Policies [Line Items]
Share-based compensation, shares authorized	750,000
Share-based compensation, expiration period	10 years
Stock Option Plan Twenty Zero Six
Summary Of Significant Accounting Policies [Line Items]
Share-based compensation, shares reserved for future issuance	150,000
Share-based compensation, expiration period	10 years 1 month
Stock Option Plan Twenty Zero Six | Maximum
Summary Of Significant Accounting Policies [Line Items]
Share-based compensation, shares authorized	400,000