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Segment Information (Schedule Of EBITDA Segment) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Feb. 27, 2016
Feb. 28, 2015
Feb. 27, 2016
Feb. 28, 2015
Segment Reporting Information [Line Items]        
Enterprise Adjusted EBITDA $ 4,406 $ 3,847 $ 8,880 $ 9,726
Share-based compensation expense (1,111) (608) (1,874) (1,010)
Reduction (increase) to contingent earn out liability (1,238)   (1,368) 28
Restructuring costs (376)   (376)  
Other expenses (139) (65) (139) (65)
Depreciation (894) (1,040) (1,806) (2,004)
Amortization (909) (953) (1,819) (1,906)
Income (loss) from operations (261) 1,181 1,498 4,769
Interest income 83 107 161 218
Interest expense $ (552) $ (535) $ (1,093) (1,074)
Discount on related party receivable (131)
Income (loss) before income taxes $ (730) $ 753 $ 566 3,782
Operating Segments [Member]        
Segment Reporting Information [Line Items]        
Enterprise Adjusted EBITDA 6,520 5,190 12,689 12,379
Depreciation (95) (139) (240) (261)
Amortization (247) (284) (494) (568)
Corporate And Eliminations [Member]        
Segment Reporting Information [Line Items]        
Enterprise Adjusted EBITDA (2,114) (1,343) (3,809) (2,653)
Depreciation (799) (901) (1,566) (1,743)
Amortization $ (662) $ (669) $ (1,325) $ (1,338)