Note 8 - Employee Post-employment Benefits (Details) - Fair Values of Assets Held by the Retirement Plan by Asset Category - USD ($) $ in Thousands	Jun. 02, 2015	Jun. 03, 2014
Level 2:
Fair value of plan assets as of measurement date	$ 6,786	$ 7,020
Benefit payments after measurement date	(65)
Total assets reported as of fiscal year end	6,786	7,020
As of Measurement Date [Member]
Level 2:
Fair value of plan assets as of measurement date	6,851	7,020
Total assets reported as of fiscal year end	6,851	7,020
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member] | As of Measurement Date [Member]
Level 2:
Fair value of plan assets as of measurement date	78	108
Total assets reported as of fiscal year end	78	108
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] | US-based Companies [Member] | As of Measurement Date [Member]
Level 2:
Fair value of plan assets as of measurement date	2,701	3,798
Total assets reported as of fiscal year end	2,701	3,798
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] | International-based Companies [Member] | As of Measurement Date [Member]
Level 2:
Fair value of plan assets as of measurement date	1,277	1,161
Total assets reported as of fiscal year end	1,277	1,161
Fixed Income Securities [Member] | Fair Value, Inputs, Level 1 [Member] | As of Measurement Date [Member]
Level 2:
Fair value of plan assets as of measurement date	1,584	1,546
Total assets reported as of fiscal year end	1,584	1,546
Public Real Estate Investment Trusts [Member] | Fair Value, Inputs, Level 1 [Member] | As of Measurement Date [Member]
Level 2:
Fair value of plan assets as of measurement date	328	303
Total assets reported as of fiscal year end	328	303
Other Retirement Plan Assets [Member] | Fair Value, Inputs, Level 1 [Member] | As of Measurement Date [Member]
Level 2:
Fair value of plan assets as of measurement date	883	104
Total assets reported as of fiscal year end	$ 883	$ 104