Note 6. Net Income Per Share (Tables)

9 Months Ended

May 25, 2013

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table Text Block]

	Thirteen weeks ended				Thirty-nine weeks ended
	May 25, 2013		May 26, 2012		May 25, 2013		May 26, 2012
Net income	$	28,722	$	27,459	$	86,124	$	72,457
Allocation of net income for Basic:
Common Stock	$	22,638	$	21,587	$	67,793	$	56,926
Class B Common Stock		5,647		5,381		16,880		14,214
Unvested participating shares		437		491		1,451		1,317
	$	28,722	$	27,459	$	86,124	$	72,457
Weighted average number of shares for Basic:
Common Stock		14,993		14,905		14,960		14,872
Class B Common Stock		4,675		4,644		4,656		4,642
Unvested participating shares		331		387		366		393
		19,999		19,936		19,982		19,907
Earnings per share for Basic:
Common Stock	$	1.51	$	1.45	$	4.53	$	3.83
Class B Common Stock	$	1.21	$	1.16	$	3.63	$	3.06

Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table Text Block]

	Thirteen weeks ended May 25, 2013							Thirty-nine weeks ended May 25, 2013
	Earnings to Common Shareholders			Common Shares		EPS		Earnings to Common Shareholders			Common Shares		EPS
As reported - Basic	$	22,638			14,993	$	1.51	$	67,793			14,960	$	4.53
Add: effect of dilutive potential common shares
Share-based awards		—			152				—			135
Class B Common Stock		5,647			4,675				16,880			4,656
Add: Undistributed earnings allocated to unvested participating shares		426			—				1,415			—
Less: Undistributed earnings reallocated to unvested participating shares		(404	)		—				(1,341	)		—
Diluted EPS – Common Stock	$	28,307			19,820	$	1.43	$	84,747			19,751	$	4.29

	Thirteen weeks ended May 26, 2012							Thirty-nine weeks ended May 26, 2012
	Earnings to Common Shareholders			Common Shares		EPS		Earnings to Common Shareholders			Common Shares		EPS
As reported - Basic	$	21,587			14,905	$	1.45	$	56,926			14,872	$	3.83
Add: effect of dilutive potential common shares
Share-based awards		—			97				—			86
Class B Common Stock		5,381			4,644				14,214			4,642
Add: Undistributed earnings allocated to unvested participating shares		478			—				1,279			—
Less: Undistributed earnings reallocated to unvested participating shares		(453	)		—				(1,214	)		—
Diluted EPS – Common Stock	$	26,993			19,646	$	1.37	$	71,205			19,600	$	3.63