Segment Information (Reconciliation Of Adjusted EBITDA) (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2019	Nov. 30, 2018
Segment Reporting Information [Line Items]
Consolidated Adjusted EBITDA	$ 4,961	$ 3,169
Stock-based compensation expense	(1,851)	(946)
Increase in the fair value of contingent consideration liabilities	(91)	(24)
Knowledge Capital wind-down costs	(389)
Licensee transition costs		(60)
Depreciation	(1,619)	(1,554)
Amortization	(1,170)	(1,238)
Loss from operations	(159)	(653)
Interest income	5	28
Interest expense	(606)	(632)
Loss before income taxes	(760)	(1,257)
Income tax benefit (provision)	216	(100)
Net loss	(544)	(1,357)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Consolidated Adjusted EBITDA	6,643	5,004
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Consolidated Adjusted EBITDA	$ (1,682)	$ (1,835)