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Note 13 - Share-based Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Nov. 30, 2023	Dec. 15, 2022	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant	30,610,851		30,610,851
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount	$ 2,721		$ 2,721
Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)			5 years
Share-based Compensation Arrangement by Share-based Payment Award, Portion Vesting Per Year	33.33%		33.33%
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares	3,724,884		3,724,884
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition			2 years
Performance Share Units [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition			2 years
Share-based Compensation Arrangement by Share-based Payment Award, Number of Common Shares Per Award	1		1
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number	1,605,500		1,605,500	1,257,200
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period	319,300
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number	1,286,200		1,286,200
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 3,771		$ 3,771
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			605,500
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 5.77
Performance Share Units [Member] | Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Common Shares Per Award	1		1
Performance Share Units [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Common Shares Per Award, Adjusted, Multiplier	0.00%		0.00%
Performance Share Units [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Common Shares Per Award, Adjusted, Multiplier	150.00%		150.00%
Retention Performance Stock Units [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			181,700
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 5.64
Retention Performance Stock Units [Member] | Executive Officer [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		181,700
Deferred Share Units [Member] | Director [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number	287,072		287,072
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			43,658	38,470	25,957
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 5.04	$ 5.74	$ 8.86
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)			48,446	52,930	0

X

- Definition

Represents the number of common shares to be granted for each share-based payment award.

+ References

No definition available.

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- Definition

Represents the percentage multiplier that may be used in order to determine the adjusted number of common shares to be granted per share-based payment award, based on the achievement of certain performance criteria.

+ References

No definition available.

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Represents the portion of share-based payment awards vesting per year.

+ References

No definition available.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for option under share-based payment arrangement.

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The number of grants made 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).

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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).

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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.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Number of shares issued under share-based payment arrangement.

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X

- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Number of non-vested options outstanding.

+ References

No definition available.

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