Segment Information (Reconciliation Of Adjusted EBITDA) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2018	Aug. 31, 2017	Aug. 31, 2016
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ 11,878	$ 7,699	$ 26,894
Stock-based compensation	(2,846)	(3,658)	(3,121)
Reduction (increase) in contingent consideration liabilities	(1,014)	1,936	(1,538)
Costs to exit Japan publishing business		(2,107)
Contract termination costs		(1,500)
Restructuring costs		(1,482)	(776)
ERP system implementation costs	(855)	(1,404)	(448)
China office start-up costs		(505)	(222)
Business acquisition costs		(442)
Depreciation	(5,161)	(3,879)	(3,677)
Amortization	(5,368)	(3,538)	(3,263)
Income (loss) from operations	(3,366)	(8,880)	13,849
Interest income	104	223	115
Interest expense	(2,676)	(2,408)	(2,263)
Accretion of discount on related party receivable	418	156	210
Income (loss) before income taxes	(5,520)	(10,909)	11,911
Benefit (provision) for income taxes	(367)	3,737	(4,895)
Net income (loss)	(5,887)	(7,172)	7,016
Operating Segments [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	24,466	17,852	35,066
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ (12,588)	$ (10,153)	$ (8,172)