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Note 12 - Share-based Compensation - Other Information Related to Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	May 31, 2023	May 31, 2022
Statement [Line Items]
Expected volatility	48.40%	46.50%
Expected term of options (years) (Year)	4 years	4 years
Expected dividend rate	0.00%	0.00%
Risk-free interest rate	3.85%	1.13%
Expected forfeiture rate	2.80%	2.90%
Weighted-average grant-date fair value (in dollars per share)	$ 2.40	$ 2.49
Intrinsic value of options exercised	$ 1,989	$ 3,630
Cash received from options exercised	$ 0	$ 0

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The estimated forfeiture rate over the option's term.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Expected term of 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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