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Note 15 - Stockholders' Equity (Tables) | 9 Months Ended
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Aug. 31, 2022
Notes Tables |
Class of Treasury Stock [Table Text Block] |
|  | Number of |  |  |  |  |  | Average Cost |
|  | Shares |  |  | Cost of Shares |  |  | per Share |
Shares purchased - February 2022 |  |  | 296,168 |  |  | $ | 2,653,571 |  |  | $ | 9.0 |
Shares purchased - March 2022 |  |  | 754,081 |  |  |  | 7,346,422 |  |  | $ | 9.7 |
Shares purchased - May 2022 |  |  | 729,709 |  |  |  | 4,999,993 |  |  | $ | 6.9 |
Total |  |  | 1,779,958 |  |  | $ | 14,999,986 |  |  | $ | 8.4 |

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