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Note 14 - Treasury Stock - Repurchases of Common Stock (Details) - $ / shares | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jul. 31, 2022 | Jun. 30, 2022 | May 31, 2022 | Jul. 31, 2022 | Jul. 31, 2022 | Jul. 31, 2021
Approximate dollar value of shares that may yet be purchased under the plans or programs (in shares) | 964,496 | 1,008,444 | 1,008,444 | 964,496 | 964,496 |
Publicly Announced Share Repurchase Program [Member] |  |  |  |  |  |
Total number of shares purchased (in shares) | 4,887 | 0 | 0 | 4,887 |  |
Treasury Stock [Member] |  |  |  |  |  |
Total number of shares purchased (in shares) | 4,887 | 0 | 0 | 4,887 | 4,887 | 234,281
Average price paid per share (in dollars per share) | $ 8.85 | $ 0 | $ 0 |  |  |

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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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