Note 13 - Stockholders' Equity - Treasury Stock Activity (Details) - USD ($) |
1 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|
Nov. 30, 2022 |
Oct. 31, 2022 |
May 31, 2022 |
Mar. 31, 2022 |
Feb. 28, 2022 |
Nov. 30, 2022 |
|
| Number of shares (in shares) | 61,037 | 324,992 | 729,709 | 754,081 | 296,168 | 2,165,987 |
| Cost of shares | $ 434,920 | $ 2,065,076 | $ 4,999,993 | $ 7,346,422 | $ 2,653,571 | $ 17,499,982 |
| Average cost per share (in dollars per share) | $ 7.1 | $ 6.4 | $ 6.9 | $ 9.7 | $ 9 | $ 8.1 |
| X | ||||||||||
- Definition Total cost of shares repurchased divided by the total number of shares repurchased. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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