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Stockholders' Equity - Significant Option Groups Outstanding and Exercisable Option and its Price and Contractual Life (Detail) | 6 Months Ended
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May 31, 2022 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Outstanding, Outstanding | shares | 495,943
Outstanding, Weighted Average Remaining Contractual Life (Years) | 4 years 5 months 26 days
Outstanding, Weighted Average Exercise Price | $ 6.54
Exercisable, Outstanding | shares | 399,029
Exercisable, Weighted Average Exercise Price | $ 5.39
Range 1 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of Exercise Prices Minimum | 1.01
Range of Exercise Prices Maximum | $ 2.00
Outstanding, Outstanding | shares | 7,500
Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 1 month 20 days
Outstanding, Weighted Average Exercise Price | $ 1.95
Exercisable, Outstanding | shares | 7,500
Exercisable, Weighted Average Exercise Price | $ 1.95
Range 2 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of Exercise Prices Minimum | 2.01
Range of Exercise Prices Maximum | $ 3.00
Outstanding, Outstanding | shares | 15,000
Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 1 month 17 days
Outstanding, Weighted Average Exercise Price | $ 2.22
Exercisable, Outstanding | shares | 15,000
Exercisable, Weighted Average Exercise Price | $ 2.22
Range 3 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of Exercise Prices Minimum | 3.01
Range of Exercise Prices Maximum | $ 4.00
Outstanding, Outstanding | shares | 179,729
Outstanding, Weighted Average Remaining Contractual Life (Years) | 3 years 9 months 7 days
Outstanding, Weighted Average Exercise Price | $ 3.14
Exercisable, Outstanding | shares | 179,729
Exercisable, Weighted Average Exercise Price | $ 3.14
Range 4 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of Exercise Prices Minimum | 6.01
Range of Exercise Prices Maximum | $ 7.00
Outstanding, Outstanding | shares | 3,833
Outstanding, Weighted Average Remaining Contractual Life (Years) | 4 years 1 month 2 days
Outstanding, Weighted Average Exercise Price | $ 6.52
Exercisable, Outstanding | shares | 3,833
Exercisable, Weighted Average Exercise Price | $ 6.52
Range 5 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of Exercise Prices Minimum | 7.01
Range of Exercise Prices Maximum | $ 8.00
Outstanding, Outstanding | shares | 199,781
Outstanding, Weighted Average Remaining Contractual Life (Years) | 5 years 5 months 15 days
Outstanding, Weighted Average Exercise Price | $ 7.64
Exercisable, Outstanding | shares | 178,445
Exercisable, Weighted Average Exercise Price | $ 7.59
Range 6 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of Exercise Prices Minimum | 9.01
Range of Exercise Prices Maximum | $ 10.00
Outstanding, Outstanding | shares | 29,000
Outstanding, Weighted Average Remaining Contractual Life (Years) | 5 years 9 months 3 days
Outstanding, Weighted Average Exercise Price | $ 9.37
Exercisable, Outstanding | shares | 7,450
Exercisable, Weighted Average Exercise Price | $ 9.37
Range 7 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of Exercise Prices Minimum | 12.01
Range of Exercise Prices Maximum | $ 13.00
Outstanding, Outstanding | shares | 16,653
Outstanding, Weighted Average Remaining Contractual Life (Years) | 8 years 2 months 23 days
Outstanding, Weighted Average Exercise Price | $ 12.54
Exercisable, Outstanding | shares | 7,072
Exercisable, Weighted Average Exercise Price | $ 12.63
Range 8 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of Exercise Prices Minimum | 13.01
Range of Exercise Prices Maximum | $ 14.00
Outstanding, Outstanding | shares | 44,447
Outstanding, Weighted Average Remaining Contractual Life (Years) | 2 years 6 months 25 days
Outstanding, Weighted Average Exercise Price | $ 13.50
Exercisable, Outstanding | shares | 0
Exercisable, Weighted Average Exercise Price | $ 0.00

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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + 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 (g) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + 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)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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