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Note 14 - Stockholders' Equity (Details Textual) | 12 Months Ended |  |
--- | --- | --- | ---
Jan. 31, 2022 $ / shares shares | Jan. 31, 2021 shares | Aug. 03, 2020 shares | Aug. 02, 2020 shares
Preferred Stock, Shares Authorized (in shares) | 2,000,000 | 2,000,000 | 2,000,000 | 1,000,000
Preferred Stock, Shares Outstanding, Ending Balance (in shares) | 1,683,000 | 1,038,000 |  |
Common Stock, Shares Authorized (in shares) | 40,000,000 | 40,000,000 | 40,000,000 | 20,000,000
Common Stock, Shares, Issued, Total (in shares) | 15,705,000 | 15,681,000 |  |
Treasury Stock, Shares, Ending Balance (in shares) | 1,931,000 | 1,929,000 |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares) | 1,100 | 0 |  |
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation, Average Fair Value (in dollars per share) | $ / shares | $ 1.25 |  |  |
Series A Preferred Stock [Member] |  |  |  |
Preferred Stock, Shares Outstanding, Ending Balance (in shares) | 1,682,985 | 1,038,232 |  |
Preferred Stock, Dividend Rate, Percentage | 9.00% |  |  |
Preferred Stock, Liquidation Preference Per Share (in dollars per share) | $ / shares | $ 25.00 |  |  |
Preferred Stock, Dividend Rate, Per-Dollar-Amount (in dollars per share) | $ / shares | 2.25 |  |  |
Preferred Stock, Redemption Price Per Share (in dollars per share) | $ / shares | $ 25.00 |  |  |
Preferred Stock Redemption Period (Day) | 120 days |  |  |
Preferred Stock, Voting Rights, Number of Quarterly Dividends Periods, Threshold | 6 |  |  |
Minimum Period Of Time For Listing (Year) | 180 years |  |  |

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