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Stock-Based Compensation (Tables)
 6 Months Ended
May 31, 2020
Share-based Payment Arrangement [Abstract]  
Schedule of Outstanding and Exercisable Stock Options The following table summarizes stock option transactions for the six months ended May 31, 2020:
 
Options
 
Weighted
Average Exercise
Price
Options outstanding at beginning of period
4,163,481

 
$
13.00

Granted
—

 
—

Exercised
(708,372
)
 
11.77

Cancelled
(6,000
)
 
45.16

Options outstanding at end of period
3,449,109

 
$
13.20

Options exercisable at end of period
3,449,109

 
$
13.20