Note 8 - Goodwill and Other Intangible Assets - Useful Lives and Remaining Amortization Period of Goodwill and Other Intangible Assets (Details)	12 Months Ended
Nov. 30, 2019
Customer Relationships [Member]
Useful life (Year)	14 years
Remaining Amortization Period (Year)	10 years
Technology-Based Intangible Assets [Member]
Useful life (Year)	7 years
Remaining Amortization Period (Year)	2 years

Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration