Note 8 - Employee Post-employment Benefits (Details) - Change in Benefit Obligation and Plan Assets and Reconciliation of Funded Status - USD ($) $ in Thousands			12 Months Ended
		Jun. 02, 2015	Jun. 02, 2015	Jun. 03, 2014	Jun. 04, 2013
Change in benefit obligation:
Beginning fair value of plan assets			$ 7,020
Benefits paid		$ (65)
Fair value of plan assets at end of year		6,786	6,786	$ 7,020
Pension Benefits [Member]
Change in benefit obligation:
Beginning projected benefit obligation			42,774	40,308
Service cost			301	356	$ 460
Interest cost			1,773	1,737	2,100
Beginning fair value of plan assets			7,020	6,506
Actual return on plan assets			336	800
Employer contributions			2,055	2,077
Actuarial loss/(gain)			1,620	2,736
Benefits paid			(2,625)	(2,363)
Fair value of plan assets at end of year		6,786	6,786	7,020	6,506
Benefit obligation at end of year		43,843	43,843	42,774	40,308
Funded status at end of year	[1]	(37,057)	(37,057)	(35,754)
Amounts recognized in the Consolidated Balance Sheets:
Accrued liabilities – payroll and related costs		(3,185)	(3,185)	(3,277)
Other deferred liabilities		(33,872)	(33,872)	(32,477)
Net amount recognized at year-end		(37,057)	(37,057)	(35,754)
Amounts recognized in accumulated other comprehensive loss:
Prior service cost		(1)	(1)	(2)
Net actuarial loss		(17,148)	(17,148)	(17,084)
Total amount recognized		(17,149)	(17,149)	(17,086)
Postretirement Medical and Life Benefits [Member]
Change in benefit obligation:
Beginning projected benefit obligation			1,376	1,896
Service cost			4	13	11
Interest cost			46	67	60
Employer contributions			133	86
Plan participant contributions			78	91
Actuarial loss/(gain)			111	(514)
Benefits paid			(211)	(177)
Benefit obligation at end of year		1,404	1,404	1,376	$ 1,896
Funded status at end of year		(1,404)	(1,404)	(1,376)
Amounts recognized in the Consolidated Balance Sheets:
Accrued liabilities – payroll and related costs		(137)	(137)	(128)
Other deferred liabilities		(1,267)	(1,267)	(1,248)
Net amount recognized at year-end		(1,404)	(1,404)	(1,376)
Amounts recognized in accumulated other comprehensive loss:
Net actuarial loss		(994)	(994)	(1,017)
Total amount recognized		$ (994)	$ (994)	$ (1,017)

[1] The funded status reflected above includes the liabilities attributable to all of the Pension Plans but only the assets of the Retirement Plan as the other plans are not considered funded for Employee Retirement Income Security Act purposes. To provide a source for the payment of benefits under the Executive Supplemental Pension Plan and the Management Retirement Plan, we own whole-life insurance contracts on some of the participants. The cash value of these policies, which are included within the Other Assets caption in our Consolidated Balance Sheets, was $29.5 million and $29.7 million at June 2, 2015 and June 3, 2014, respectively. In addition, we held in trust a negligible amount and $0.2 million of cash and cash equivalents as of June 2, 2015 and June 3, 2014, respectively, relating to these policies. We maintain a rabbi trust to hold the policies and death benefits as they are received.