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Note 14 - Equity and Stock-based Compensation (Details Textual) |  |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Oct. 12, 2023 | Sep. 28, 2023 shares | Oct. 31, 2023 USD ($) $ / shares shares | Oct. 31, 2022 USD ($) | Oct. 31, 2023 USD ($) $ / shares shares | Oct. 31, 2022 USD ($) | Sep. 27, 2023 shares | Jan. 31, 2023 shares
Preferred Stock, Shares Outstanding, Ending Balance (in shares) | shares |  |  | 1,683,000 |  | 1,683,000 |  |  | 1,683,000
Preferred Stock, Liquidation Preference, Value | $ |  |  | $ 46,800,000 |  | $ 46,800,000 |  |  |
Preferred Stock, Amount of Preferred Dividends in Arrears | $ |  |  |  |  | $ 4,700,000 |  |  |
Preferred Stock, Liquidation Preference Per Share (in dollars per share) | $ / shares |  |  | $ 25 |  | $ 25 |  |  |
Common Stock, Shares, Issued (in shares) | shares |  | 1,405,779 | 1,406,000 |  | 1,406,000 |  | 13,788,738 | 1,599,000
Share-Based Payment Arrangement, Expense | $ |  |  | $ 106,000 | $ 136,000 | $ 264,000 | $ 524,000 |  |
Common Stock, Shares, Outstanding (in shares) | shares |  | 1,405,779 |  |  |  |  | 13,788,738 |
Reverse Stock Split [Member] |  |  |  |  |  |  |  |
Stockholders' Equity Note, Stock Split, Conversion Ratio | 10 | 10 |  |  |  |  |  |
Preferred Stock [Member] | Quarterly Dividends [Member] |  |  |  |  |  |  |  |
Dividends Payable, Amount Per Share (in dollars per share) | $ / shares |  |  | $ 0.5625 |  | $ 0.5625 |  |  |

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