Note 12 - Capital Stock and Stock Compensation - Restricted Stock Awards (Details) - Restricted Stock [Member] - $ / shares	12 Months Ended
Nov. 28, 2020	Nov. 30, 2019
Restricted Shares Outstanding (in shares)	34,500	90,153
Granted (in dollars per share)	$ 0
January 11, 2018 [Member]
Restricted Shares Outstanding (in shares)	31,000
Granted (in dollars per share)	$ 35.75
Remaining Restriction Period (Year)	1 month 6 days
October 9, 2019 [Member]
Restricted Shares Outstanding (in shares)	3,500
Granted (in dollars per share)	$ 14.37
Remaining Restriction Period (Year)	1 year 10 months 24 days

The restricted period of time on other than stock (or unit) option plans.

No definition available.

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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