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Note 13 - Share-based Compensation (Tables)

12 Months Ended

Nov. 30, 2023

Notes Tables

Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

		Years ended November 30,
		2023				2022				2021
Stock options		$	4,594			$	4,642			$	4,721
Performance share unit plan			3,910				3,345				3,278
Deferred share unit plan			227				227				236
		$	8,731			$	8,214			$	8,235

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

		Number of stock options				Weighted- average exercise price per share				Weighted- average remaining contractual term (years)				Aggregate intrinsic value
November 30, 2022			7,717,413			$	6.18
Granted			2,291,800				5.71
Exercised			(1,914,311	)			(3.73	)
Cancelled			(488,702	)			(7.08	)
November 30, 2023			7,606,200			$	6.59				2.38			$	505
Vested and exercisable as of November 30, 2023			3,881,316			$	6.75				1.28			$	505

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		Years ended November 30,
		2023				2022				2021
Weighted-average assumptions used to value stock option awards:
Expected volatility			48.4	%			46.5	%			47.2	%
Expected term of options (years)			4				4				4
Expected dividend rate			—				—				—
Risk-free interest rate			3.85	%			1.13	%			0.3	%
Expected forfeiture rate			2.8	%			2.9	%			3.0	%
Weighted-average grant-date fair value		$	2.40			$	2.49			$	3.63
Intrinsic value of options exercised		$	2,339			$	5,723			$	12,543
Cash received from options exercised		$	—			$	—			$	—

Schedule of Nonvested Performance-Based Units Activity [Table Text Block]

		Number of PSU awards				Weighted- average grant day fair value per award				Aggregate intrinsic value
November 30, 2022			1,257,200			$	7.65
Granted			605,500				5.77
Retention awards granted			181,700				5.64
Expired			(438,900	)			(6.96	)
November 30, 2023			1,605,500			$	6.89			$	760

Other PSU-related Information [Table Text Block]

		Years ended November 30,
		2023				2022				2021
Performance multiplier on PSUs vested			—	%			93	%			150	%
Common shares issued			—				430,045				574,379
Total fair value of common shares issued		$	—			$	2,903			$	5,723
Withholding tax paid on PSUs vested		$	—			$	2,122			$	731

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