Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Significant Option Groups Outstanding and Exercisable Option and its Price and Contractual Life (Detail)

v3.22.0.1
Stockholders' Equity - Significant Option Groups Outstanding and Exercisable Option and its Price and Contractual Life (Detail)
12 Months Ended
Nov. 30, 2021
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Outstanding, Outstanding | shares 537,443
Outstanding, Weighted Average Remaining Contractual Life (Years) 5 years 2 months 19 days
Outstanding, Weighted Average Exercise Price $ 5.76
Exercisable, Outstanding | shares 474,409
Exercisable, Weighted Average Exercise Price $ 5.25
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 15,000
Outstanding, Weighted Average Remaining Contractual Life (Years) 1 year 7 months 17 days
Outstanding, Weighted Average Exercise Price $ 1.95
Exercisable, Outstanding | shares 15,000
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 30,000
Outstanding, Weighted Average Remaining Contractual Life (Years) 1 year 7 months 17 days
Outstanding, Weighted Average Exercise Price $ 2.22
Exercisable, Outstanding | shares 30,000
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 197,229
Outstanding, Weighted Average Remaining Contractual Life (Years) 4 years 3 months
Outstanding, Weighted Average Exercise Price $ 3.15
Exercisable, Outstanding | shares 197,229
Exercisable, Weighted Average Exercise Price $ 3.15
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 7 months 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 248,481
Outstanding, Weighted Average Remaining Contractual Life (Years) 6 years 2 months 26 days
Outstanding, Weighted Average Exercise Price $ 7.64
Exercisable, Outstanding | shares 223,945
Exercisable, Weighted Average Exercise Price $ 7.60
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 27,000
Outstanding, Weighted Average Remaining Contractual Life (Years) 6 years 2 months 8 days
Outstanding, Weighted Average Exercise Price $ 9.40
Exercisable, Outstanding | shares 1,750
Exercisable, Weighted Average Exercise Price $ 9.10
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 15,900
Outstanding, Weighted Average Remaining Contractual Life (Years) 9 years 10 months 20 days
Outstanding, Weighted Average Exercise Price $ 12.63
Exercisable, Outstanding | shares 2,652
Exercisable, Weighted Average Exercise Price $ 12.63