Note 17 - Earnings Per Share (Details Textual) - shares  | 
3 Months Ended | 6 Months Ended | 
|---|---|---|
May 31, 2021  | 
May 31, 2021  | 
|
| Restricted Stock Units (RSUs) [Member] | ||
| Contingently Issuable Shares (in shares) | 1,155,000 | 1,155,000 | 
| X | ||||||||||
- Definition The number of contingently issuable shares. No definition available. 
  | 
| X | ||||||||||
- Details 
  |