Segment Information (Reconciliation Of Adjusted EBITDA) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2018
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ 14,284	$ 20,606	$ 11,878
Stock-based compensation	573	(4,789)	(2,846)
Reduction (increase) in contingent consideration liabilities	49	(1,334)	(1,014)
Restructuring costs	(1,636)
Gain from insurance settlement	933
Government COVID assistance	514
Knowledge Capital wind-down costs	(389)
ERP system implementation costs			(855)
Licensee transition costs		(488)
Depreciation	(6,664)	(6,364)	(5,161)
Amortization	(4,606)	(4,976)	(5,368)
Income (loss) from operations	3,058	2,655	(3,366)
Interest income	56	37	104
Interest expense	(2,318)	(2,358)	(2,676)
Accretion of discount on related party receivable		258	418
Income (loss) before income taxes	796	592	(5,520)
Provision for income taxes	(10,231)	(1,615)	(367)
Net loss	(9,435)	(1,023)	(5,887)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	20,010	29,080	21,045
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ (5,726)	$ (8,474)	$ (9,167)