Stock-Based Compensation Plans (Narrative) (Details) (USD $)	3 Months Ended					3 Months Ended	12 Months Ended
	Aug. 30, 2014	Aug. 24, 2013	Aug. 30, 2014 Stock Incentive Plan 2004 [Member]	Aug. 30, 2014 Prior Stock Plans [Member]	Aug. 30, 2014 2014 Performance Incentive Plan [Member]	Aug. 30, 2014 Employee Stock Purchase Plan [Member]	May 31, 2014 Employee Stock Purchase Plan [Member]	Oct. 23, 2014 Employee Stock Purchase Plan [Member] Scenario, Forecast [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
New shares of common stock made available for awards			7,500,000			4,400,000
Stock options vesting period			4 years
Stock options termination period			10 years
Shares available for grant			184,000	0	2,400,000	268,000
Stock split conversion ratio			2.5
The aggregate intrinsic value of stock options exercised	$ 347,000	$ 289,000
Unrecognized compensation cost related to stock-based compensation	11,100,000
Weighted-average period of cost to be recognized	35 months
Stock-based compensation expense	1,546,000	1,654,000
Capitalized share based compensation costs	0	0
Weighted average estimated value per share of employee stock options granted	$ 3.87
Shares of restricted stock granted	6,314	5,141
Share based compensation expense for restricted shares	123,000	85,000
Unvested restricted shares	85,907
Total unrecognized compensation cost	860,000
Excess tax benefits from stock-based compensation	$ 14,000	$ 1,000
Percentage of exercise price per share out of fair market value						85.00%
Common stock issued						171,000	348,000
Increase in shares available for issuance								1,500,000