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Note 12 - Earnings Per Share (Details Textual) shares in Thousands |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Oct. 12, 2023 | Sep. 28, 2023 | Oct. 31, 2023 shares | Oct. 31, 2022 shares | Oct. 31, 2023 shares | Oct. 31, 2022 shares
Weighted Average Number of Shares Outstanding, Basic (in shares) |  |  | 1,406 | 1,406 | 1,406 | 1,405
Reverse Stock Split [Member] |  |  |  |  |  |
Stockholders' Equity Note, Stock Split, Conversion Ratio | 10 | 10 |  |  |  |

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