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Note 12 - Stockholders' Equity (Details Textual) $ / shares in Units, $ in Millions |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 04, 2024 USD ($) shares | Sep. 28, 2023 shares | Jan. 31, 2024 $ / shares shares | Jan. 31, 2025 $ / shares shares | Aug. 29, 2024 $ / shares | Sep. 27, 2023 shares | Jan. 31, 2023 shares
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  | $ 1 | $ 1 | $ 1 |  |
Preferred Stock, Convertible, Conversion Ratio |  |  |  |  | 3.9 |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  | $ 0.01 | $ 0.01 | $ 0.01 |  |
Treasury Stock Reissued at Lower than Repurchase Price, Conversion of Convertible Securities | $ | $ 14.8 |  |  |  |  |  |
Common Stock, Shares, Issued (in shares) |  | 1,405,779 | 1,405,779 | 7,969,421 |  | 13,788,738 |
Common Stock, Shares Authorized (in shares) |  |  | 40,000,000 | 40,000,000 |  |  | 40,000,000
Common Stock, Shares, Outstanding (in shares) |  | 1,405,779 |  |  |  | 13,788,738 |
Reverse Stock Split [Member] |  |  |  |  |  |  |
Stockholders' Equity Note, Stock Split, Conversion Ratio |  | 10 |  |  |  |  |
Conversion of Series A Preferred Stock Into Common Stock [Member] |  |  |  |  |  |  |
Conversion of Stock, Shares Issued (in shares) | 6,600,000 |  |  |  |  |  |
Series A Preferred Stock [Member] |  |  |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  |  | 9.00% |  |  |  |

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