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Stockholders' Equity - Stock Option Activity (Detail) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 31, 2019 | May 31, 2020 | May 31, 2019 | Nov. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted | 1,500 | 44,969 | 1,500 |
Service-Based Vesting Condition Options [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Outstanding at November 30, 2018 |  | 1,089,774 |  |
Granted |  | 44,969 |  |
Exercised |  | (20,000) |  |
Outstanding at May 31, 2020 |  | 1,114,743 |  | 1,089,774
Exercisable at May 31, 2020 |  | 1,018,873 |  |
Outstanding at November 30, 2018, Weighted Average Exercise Price |  | $ 3.30 |  |
Granted, Weighted Average Exercise Price |  | 7.26 |  |
Exercised, Weighted Average Exercise Price |  | 2.05 |  |
Expired/forfeited, Weighted Average Exercise Price |  | 3.49 |  |
Exercisable at May 31, 2020, Weighted Average Exercise Price |  | $ 3.11 |  |
Outstanding, Weighted Average Remaining Contractual Term (Years) |  | 3 years 8 months 8 days |  | 3 years 10 months 27 days
Exercisable at May 31, 2020, Weighted Average Remaining Contractual Term (Years) |  | 3 years 2 months 12 days |  |
Outstanding at November 30, 2019 |  | $ 4,648,111 |  |
Granted |  | 6,369 |  |
Exercised |  | 102,800 |  |
Outstanding at May 31, 2020 |  | 4,409,680 |  | $ 4,648,111
Exercisable at May 31, 2020 |  | $ 4,404,284 |  |

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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