Note 10 - Employee Post-Employment Benefits (Details) - Fair Values of Assets Held by the Retirement Plan by Asset Category (USD $) In Thousands, unless otherwise specified	Jun. 03, 2014
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	$ 7,020
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	108
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	108
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] | US-based Companies [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	3,798
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] | International-based Companies [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	1,161
Equity Securities [Member] | US-based Companies [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	3,798
Equity Securities [Member] | International-based Companies [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	1,161
Fixed Income Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	1,546
Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	1,546
Public Real Estate Investment Trusts [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	303
Public Real Estate Investment Trusts [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	303
Other Retirement Plan Assets [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	104
Other Retirement Plan Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	104
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	6,912
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets held by the retirement plan	$ 108