Earnings Per Share (Calculation of Basic and Diluted Income Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	May 28, 2016	May 30, 2015	May 28, 2016	May 30, 2015
Earnings Per Share [Abstract]
Net income	$ 14,438	$ 11,502	$ 32,350	$ 29,493
Weighted average shares outstanding	26,892	26,932	26,935	26,942
Net income per share - basic (in dollars per share)	$ 0.54	$ 0.43	$ 1.20	$ 1.09
Dilutive impact of awards and options outstanding	112	98	94	100
Weighted average shares and potential dilutive shares outstanding	27,004	27,030	27,029	27,042
Net income per share - assuming dilution (in dollars per share)	$ 0.53	$ 0.43	$ 1.20	$ 1.09