Segment Information (Schedule Of EBITDA Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May. 30, 2015	May. 31, 2014	May. 30, 2015	May. 31, 2014
Segment Reporting Information [Line Items]
Enterprise Adjusted EBITDA	$ 4,864	$ 5,133	$ 14,590	$ 17,774
Share-based compensation expense	(592)	(616)	(1,602)	(2,860)
Reduction of contingent earn out liability	51	350	79	936
Other	65
Impairment of assets	(1,082)		(1,082)
Depreciation	(980)	(866)	(2,984)	(2,466)
Amortization	(912)	(983)	(2,818)	(2,961)
Income from operations	1,414	3,018	6,183	10,423
Interest income	104	74	322	325
Interest expense	(532)	(557)	(1,605)	(1,676)
Discount on related party receivable	(233)	(141)	(364)	(424)
Income before income taxes	753	2,394	4,536	8,648
Operating Segments [Member]
Segment Reporting Information [Line Items]
Enterprise Adjusted EBITDA	5,779	5,965	17,888	20,943
Depreciation	(609)	(534)	(1,854)	(1,473)
Amortization	(912)	(983)	(2,818)	(2,961)
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Enterprise Adjusted EBITDA	(915)	(832)	(3,298)	(3,169)
Depreciation	$ (371)	$ (332)	$ (1,130)	$ (993)