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Note 13 - Capital Stock - Schedule of Outstanding Unvested Stock Options (Details) - $ / shares | 3 Months Ended
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Apr. 30, 2022 | Jan. 31, 2022 | Oct. 31, 2021
Nonvested balance (in shares) | 2,565,832 | 3,635,780 | 3,891,207
Nonvested, Weighted Average Grant-Date Fair Value (in dollars per share) | $ 0.68 | $ 0.64 | $ 0.66
Granted, number of stock options (in shares) |  |  | 10,000
Granted, Weighted Average Grant-Date Fair Value (in dollars per share) |  |  | $ 1.73
Vested (in shares) | (11,872) | (1,069,948) | (265,427)
Vested, Weighted Average Grant-Date Fair Value (in dollars per share) | $ 1.34 | $ 0.55 | $ 0.87
Nonvested balance (in shares) | 2,553,960 | 2,565,832 | 3,635,780
Nonvested, Weighted Average Grant-Date Fair Value (in dollars per share) | $ 0.68 | $ 0.68 | $ 0.64

X
- Definition Gross number of share options (or share units) granted during 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 (c)(1)(iv)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + 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 (d)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Number of non-vested options outstanding. + References No definition available. + Details
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