Segment Information (Reconciliation Of Adjusted EBITDA) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Feb. 28, 2018	Feb. 28, 2017	Feb. 28, 2018	Feb. 28, 2017	Aug. 31, 2017
Segment Reporting Information [Line Items]
Consolidated Adjusted EBITDA	$ (668)	$ (367)	$ (66)	$ (3,186)
Stock-based compensation expense	(779)	(1,564)	(1,736)	(2,777)
Reduction (increase) to contingent consideration liabilities	(477)	924	(652)	1,936	$ (652)
Contract termination costs		(1,500)		(1,500)
China office start-up costs		(26)		(505)
ERP system implementation costs	(429)	(306)	(855)	(593)
Depreciation	(1,379)	(928)	(2,280)	(1,794)
Amortization	(1,395)	(721)	(2,791)	(1,443)
Loss from operations	(5,127)	(4,488)	(8,380)	(9,862)
Interest income	54	109	115	225
Interest expense	(692)	(623)	(1,240)	(1,244)
Loss before income taxes	(5,765)	(5,002)	(9,505)	(10,881)
Income tax benefit	3,025	1,669	4,373	3,590
Net loss	(2,740)	(3,333)	(5,132)	(7,291)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Consolidated Adjusted EBITDA	2,052	2,334	5,873	2,305
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Consolidated Adjusted EBITDA	$ (2,720)	$ (2,701)	$ (5,939)	$ (5,491)