Note 7 - Employee Benefit Plans (Tables)

12 Months Ended

Aug. 27, 2016

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

	Pension Plans									SERP
	2016			2015			2014			2016		2015		2014
Service cost	$	204		$	192		$	172		$	819	$	821	$	615
Interest cost		307			294			328			984		1,133		942
Expected return on assets		(177	)		(182	)		(183	)		—		—		—
Amortization of prior service cost		84			62			62			368		368		368
Amortization of unrecognized loss		105			152			113			274		461		151
Other events		43			174			72			—		—		—
Net periodic benefit cost	$	566		$	692		$	564		$	2,445	$	2,783	$	2,076

Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]

	Pension Plans						SERP
	2016			2015			2016			2015
Change in benefit obligation:
Projected benefit obligation, beginning of year	$	8,479		$	8,755		$	23,755		$	21,284
Service cost		204			192			819			821
Interest cost		307			294			984			1,133
Amendments		—			263			—			—
Actuarial loss (gain)		506			(228	)		5,568			290
Benefits paid		(370	)		(314	)		(430	)		(243	)
Settlements		(126	)		(483	)		—			—
Projected benefit obligation, end of year	$	9,000		$	8,479		$	30,696		$	23,285
Change in plan assets:
Fair value of plan assets, beginning of year	$	4,757		$	5,008		$	—		$	—
Actual return on plan assets		71			153			—			—
Employer contributions		420			394			—			—
Benefits paid		(370	)		(314	)		—			—
Settlements		(125	)		(484	)		—			—
Fair value of plan assets, end of year	$	4,753		$	4,757		$	—		$	—
Funded status (net amount recognized):	$	(4,247	)	$	(3,722	)	$	(30,696	)	$	(23,285	)

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

	Pension Plans						SERP
	2016			2015			2016			2015
Deferred tax assets	$	1,119		$	988		$	4,046		$	1,975
Accrued liabilities	$	4,247		$	3,722		$	30,696		$	23,285
Accumulated other comprehensive loss	$	(1,788	)	$	(1,538	)	$	(6,463	)	$	(3,181	)

Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

	Pension Plans						SERP
	2016			2015			2016			2015
Net actuarial loss	$	(1,497	)	$	(1,199	)	$	(6,429	)	$	(2,918	)
Unrecognized prior service cost		(291	)		(339	)		(34	)		(263	)
Accumulated other comprehensive loss	$	(1,788	)	$	(1,538	)	$	(6,463	)	$	(3,181	)

Schedule of Assumptions Used [Table Text Block]

	Pension Plans						SERP
	2016			2015			2016			2015
Discount rate		2.9	%		3.8	%		3.3	%		4.1	%
Rate of compensation increase		N/A			N/A			5.0	%		5.0	%

Schedule of Assumptions Used in Calculating Net Periodic Service Cost [Table Text Block]

	Pension Plans									SERP
	2016			2015			2014			2016			2015			2014
Discount rate		3.8	%		3.6	%		4.3	%		4.2	%		3.8	%		4.6	%
Expected return on plan assets		3.9	%		3.9	%		4.0	%		N/A			N/A			N/A
Rate of compensation increase		N/A			N/A			N/A			5.0	%		5.0	%		5.0	%

Schedule of Expected Benefit Payments [Table Text Block]

	Pension Plans		SERP
2017	$	890	$	978
2018		387		1,036
2019		756		1,038
2020		574		1,098
2021		420		1,308
Thereafter		5,973		25,238
Total benefit payments	$	9,000	$	30,696