Annual report pursuant to Section 13 and 15(d)

Inventory - Additional Information (Detail)

v3.20.4
Inventory - Additional Information (Detail) - USD ($)
3 Months Ended 12 Months Ended
Nov. 30, 2020
May 31, 2019
Nov. 30, 2020
Nov. 30, 2019
Inventory Disclosure [Abstract]        
Other asset impairment charge $ 1,284,238 $ 2,332,763 $ 1,284,238 $ 2,332,763