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Segment Information (Schedule Of Segment Operations) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Feb. 28, 2017
Feb. 27, 2016
Feb. 28, 2017
Feb. 27, 2016
Segment Reporting Information [Line Items]        
Sales to external customers $ 42,196 $ 45,269 $ 81,983 $ 90,486
Gross profit 28,031 29,854 53,340 59,925
Adjusted EBITDA (367) 4,406 (3,186) 8,880
Operating Segments [Member]        
Segment Reporting Information [Line Items]        
Sales to external customers 40,199 42,800 78,382 86,334
Gross profit 27,014 28,658 51,365 57,858
Adjusted EBITDA 1,924 6,520 1,459 12,689
Operating Segments [Member] | Direct Offices [Member]        
Segment Reporting Information [Line Items]        
Sales to external customers 23,412 24,564 44,659 48,214
Gross profit 16,517 17,802 30,640 34,371
Adjusted EBITDA 1,618 4,461 1,022 7,130
Operating Segments [Member] | Strategic Markets [Member]        
Segment Reporting Information [Line Items]        
Sales to external customers 6,002 7,551 10,762 14,747
Gross profit 3,827 4,838 6,379 9,347
Adjusted EBITDA (181) 1,289 (1,364) 2,139
Operating Segments [Member] | Education Practice [Member]        
Segment Reporting Information [Line Items]        
Sales to external customers 7,848 6,835 16,591 15,004
Gross profit 4,408 3,170 9,432 7,835
Adjusted EBITDA (848) (1,022) (842) (709)
Operating Segments [Member] | International Licensees [Member]        
Segment Reporting Information [Line Items]        
Sales to external customers 2,937 3,850 6,370 8,369
Gross profit 2,262 2,848 4,914 6,305
Adjusted EBITDA 1,335 1,792 2,643 4,129
Corporate And Eliminations [Member]        
Segment Reporting Information [Line Items]        
Sales to external customers 1,997 2,469 3,601 4,152
Gross profit 1,017 1,196 1,975 2,067
Adjusted EBITDA $ (2,291) $ (2,114) $ (4,645) $ (3,809)