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Income Taxes - Summary of Federal Statutory Rate to Pretax Income (Detail) - USD ($) | 12 Months Ended
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Nov. 30, 2020 | Nov. 30, 2019
Income Tax Disclosure [Abstract] |  |
Tax at Federal Statutory Rate, Amount | $ 1,061,885 | $ 733,198
State Income Tax Effect, Amount | 282,514 | 220,527
Change in Valuation Allowance, Amount | (147,528) | 12,158
Tax Compensation Differences, Amount | 6,870 | 26,330
Permanent Disallowances, Amount | 55,372 | 76,775
Deferred Repricing, Amount | 80,692 | 12,375
Other, Amount | 74,922 | 19,278
Foreign tax credits, Amount | (68,102) | (108,150)
Foreign tax withholding, Amount | 68,102 | 108,150
Income Tax Expense | $ 1,414,727 | $ 1,100,641
Tax at Federal Statutory Rate | 21.00% | 21.00%
State Income Tax Effect, Rate | 5.59% | 6.32%
Change in Valuation Allowance, Rate | (2.92%) | 0.35%
Tax Compensation Differences, Rate | 0.14% | 0.75%
Permanent Disallowances, Rate | 1.10% | 2.20%
Deferred Repricing, Rate | 1.60% | 0.35%
Other, Rate | 1.47% | (0.10%)
Foreign tax credits, Rate | (1.35%) | (3.10%)
Foreign tax withholding, Rate | 1.35% | 3.10%
Total income taxes, Rate | 27.98% | 30.87%

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