Segment Information (Schedule Of EBITDA Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	May 31, 2014	Jun. 01, 2013	May 31, 2014	Jun. 01, 2013
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ 5,133	$ 6,262	$ 17,774	$ 18,915
Share-based compensation expense	(616)	(488)	(2,860)	(1,933)
Reduction of contingent earn out liability	350		936
Depreciation	(866)	(752)	(2,466)	(2,175)
Amortization	(983)	(960)	(2,961)	(2,201)
Income from operations	3,018	4,062	10,423	12,606
Interest income	74	158	325	446
Interest expense	(557)	(578)	(1,676)	(1,766)
Discount on related party receivable	(141)	(135)	(424)	(418)
Other income, net		20		20
Income before income taxes	2,394	3,527	8,648	10,888
Reportable Unit Assets [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	5,965	7,452	20,943	22,290
Depreciation	(534)	(399)	(1,473)	(1,130)
Amortization	(983)	(960)	(2,961)	(2,201)
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	(832)	(1,190)	(3,169)	(3,375)
Depreciation	$ (332)	$ (353)	$ (993)	$ (1,045)