Fair Value Of Financial Instruments (Narrative) (Details) - USD ($) $ in Thousands	May 31, 2020	Feb. 29, 2020	Nov. 30, 2019	Aug. 31, 2019
Contingent consideration	$ 3,695	$ 4,227	$ 4,538	$ 5,229
Jhana [Member]
Contingent consideration	2,950	3,308	3,284	3,468
Jhana [Member] \| Accrued Liabilities [Member]
Contingent consideration	800
RGP [Member]
Contingent consideration	745	$ 919	$ 1,254	$ 1,761
RGP [Member] \| Accrued Liabilities [Member]
Contingent consideration	$ 500

Amount of liability recognized arising from contingent consideration in a business combination.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116859824&loc=d3e6819-128478

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

Name:	us-gaap_BusinessCombinationContingentConsiderationLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant