Note 8 - Employee Post-employment Benefits (Details) - Pension Plans with Benefit Obligations in Excess of Plan Assets - USD ($) $ in Thousands	Jun. 02, 2015	Jun. 03, 2014
Pension Benefits [Member]
Note 8 - Employee Post-employment Benefits (Details) - Pension Plans with Benefit Obligations in Excess of Plan Assets [Line Items]
Projected benefit obligation	$ 43,843	$ 42,774
Accumulated benefit obligation	43,518	42,002
Fair value of plan assets	6,786	7,020
Postretirement Medical and Life Benefits [Member]
Note 8 - Employee Post-employment Benefits (Details) - Pension Plans with Benefit Obligations in Excess of Plan Assets [Line Items]
Projected benefit obligation	1,404	1,376
Accumulated benefit obligation	$ 1,404	$ 1,376