Segment Information (Schedule Of Segment Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2017	May 28, 2016	May 31, 2017	May 28, 2016
Segment Reporting Information [Line Items]
Sales to external customers	$ 43,751	$ 44,738	$ 125,734	$ 135,224
Gross profit	27,341	29,562	80,680	89,488
Adjusted EBITDA	(18)	1,794	(3,204)	10,675
Operating Segments [Member]
Segment Reporting Information [Line Items]
Sales to external customers	41,856	42,667	120,237	128,999
Gross profit	26,268	28,521	77,633	86,379
Adjusted EBITDA	2,184	3,763	3,642	16,452
Operating Segments [Member] | Direct Offices [Member]
Segment Reporting Information [Line Items]
Sales to external customers	24,019	23,894	68,678	72,107
Gross profit	14,902	16,805	45,543	51,177
Adjusted EBITDA	1,323	2,842	2,345	9,972
Operating Segments [Member] | Strategic Markets [Member]
Segment Reporting Information [Line Items]
Sales to external customers	5,419	6,924	16,181	21,670
Gross profit	3,208	4,045	9,586	13,392
Adjusted EBITDA	(720)	247	(2,085)	2,386
Operating Segments [Member] | Education Practice [Member]
Segment Reporting Information [Line Items]
Sales to external customers	8,596	7,517	25,187	22,520
Gross profit	5,194	4,322	14,626	12,156
Adjusted EBITDA	(43)	(1,446)	(885)	(2,155)
Operating Segments [Member] | International Licensees [Member]
Segment Reporting Information [Line Items]
Sales to external customers	3,822	4,332	10,191	12,702
Gross profit	2,964	3,349	7,878	9,654
Adjusted EBITDA	1,624	2,120	4,267	6,249
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Sales to external customers	1,895	2,071	5,497	6,225
Gross profit	1,073	1,041	3,047	3,109
Adjusted EBITDA	$ (2,202)	$ (1,969)	$ (6,846)	$ (5,777)