Annual report pursuant to Section 13 and 15(d)

Income Taxes - Summary of Federal Statutory Rate to Pretax Income (Detail)

v3.10.0.1
Income Taxes - Summary of Federal Statutory Rate to Pretax Income (Detail) - USD ($)
12 Months Ended
Jan. 31, 2018
Nov. 30, 2018
Nov. 30, 2017
Income Tax Disclosure [Abstract]      
Tax at Federal Statutory Rate, Amount   $ 799,507 $ 1,195,183
State Income Tax Effect, Amount   216,608 178,645
Valuation Allowance Release, Amount   0 0
Tax Compensation Differences, Amount   260,845  
Permanent Disallowances, Amount   149,141 158,780
Impact of Tax Reform, Amount   3,078,094  
Deferred Repricing, Amount   (28,337) (342,645)
Other, Amount   (3,354) 118,640
Foreign tax credits, Amount   (108,314) (108,481)
Foreign tax withholding, Amount   108,314 108,481
Income Tax Expense   $ 4,472,504 $ 1,308,603
Tax at Federal Statutory Rate 21.00% 22.10% 34.00%
State Income Tax Effect, Rate   5.99% 5.08%
Valuation Allowance Release, Rate   (0.00%) (0.00%)
Tax Compensation Differences, Rate   7.21% 0.00%
Permanent Disallowances, Rate   4.12% 4.52%
Impact of Tax Reform, Rate   85.08% 0.00%
Deferred Repricing, Rate   (0.78%) (9.75%)
Other, Rate   (0.09%) 3.37%
Foreign tax credits, Rate   (2.99%) (3.09%)
Foreign tax withholding, Rate   2.99% 3.09%
Total income taxes, Rate   123.63% 37.22%