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Note 14 - Stock-based Compensation - Valuation Assumptions (Details) - $ / shares | 12 Months Ended
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Nov. 30, 2022 | Nov. 30, 2021
Maximum [Member] |  |
Market price of the Company’s common stock on date of grant (in dollars per share) |  | $ 26.9
Minimum [Member] |  |
Market price of the Company’s common stock on date of grant (in dollars per share) |  | $ 20.9
Share-Based Payment Arrangement, Option [Member] |  |
Risk free rate | 3.34% | 0.30%
Expected dividends | 0.00% | 0.00%
Expected volatility | 78.44% | 92.00%
Expected life (in years) (Year) | 6 years 6 months | 3 years
Market price of the Company’s common stock on date of grant (in dollars per share) | $ 5.51 |
Exercise price (in dollars per share) | $ 7.70 |
Share-Based Payment Arrangement, Option [Member] | Maximum [Member] |  |
Risk free rate | 3.35% | 0.64%
Expected dividends | 0.00% |
Expected volatility | 70.00% | 113.00%
Expected life (in years) (Year) | 1 year 4 months 20 days | 5 years
Market price of the Company’s common stock on date of grant (in dollars per share) | $ 8.24 | $ 20.94
Exercise price (in dollars per share) |  | $ 20.20
Share-Based Payment Arrangement, Option [Member] | Minimum [Member] |  |
Risk free rate |  | 0.26%
Expected volatility |  | 80.00%
Expected life (in years) (Year) |  | 4 years
Market price of the Company’s common stock on date of grant (in dollars per share) | $ 7.69 | $ 14.74
Exercise price (in dollars per share) |  | $ 14.90

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- Definition Represents the market price of the Company's common stock on date of grant. + References No definition available. + Details
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- Definition Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award. + References No definition available. + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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