Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
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- Definition

Amount of lessee's right to use underlying asset under operating lease.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

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-Name Accounting Standards Codification
-Topic 210
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Note 1 - Basis of Presentation (Details Textual) $ in Thousands	3 Months Ended	12 Months Ended
	Feb. 29, 2020 USD ($)	Nov. 30, 2019 USD ($)	Dec. 01, 2019 USD ($)	Dec. 01, 2018 USD ($)
Number of Reportable Segments	3	5
Operating Lease, Liability, Total	$ 26,545
Retained Earnings (Accumulated Deficit), Ending Balance	$ 1,385,993	$ 1,384,411
Accounting Standards Update 2016-02 [Member]
Operating Lease, Liability, Total			$ 28,254
Operating Lease, Right-of-Use Asset			$ 28,254
Accounting Standards Update 2014-09 [Member]
Retained Earnings (Accumulated Deficit), Ending Balance				$ 1,776
Accounting Standards Update 2016-16 [Member]
Retained Earnings (Accumulated Deficit), Ending Balance				$ 733