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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2021	Nov. 30, 2020
Operating Loss Carryforwards [Line Items]
Deferred tax assets, valuation allowance	$ 2,693	$ 4,411
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	32,968	36,264
State
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 41,935	$ 51,757
State | Minimum
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward, term	10 years
State | Maximum
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward, term	20 years

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Operating Loss Carryforwards, Term

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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