Note 12 - Share-based Compensation (Tables)

12 Months Ended

Aug. 29, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Compensation Expense For All Share-Based Compensation For Five Fiscal Years [Table Text Block]

	Share-Based Awards		Restricted Stock		Total
2016	$	2,322	$	680	$	3,002
2017		2,013		—		2,013
2018		1,605		—		1,605
2019		923		—		923
2020		119		—		119
Total	$	6,982	$	680	$	7,662

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Number of Shares			Weighted Average Exercise Price
Outstanding, August 30, 2014		618,602		$	61.86
Granted		130,875			107.43
Exercised		(95,476	)		43.10
Forfeited		(9,000	)		73.47
Outstanding, August 29, 2015		645,001		$	73.72
Exercisable, August 29, 2015		98,501		$	53.23