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Note 7 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Jan. 31, 2022 | Jan. 31, 2021 | Jan. 31, 2020
Taxes Payable, Total | $ 200 | $ 200 |
Effective Income Tax Rate Reconciliation, Percent, Total | 27.20% | 1.70% |
Deferred Tax Assets, Operating Loss Carryforwards, State and Local | $ 2,730 | $ 2,678 |
Deferred Tax Assets, Operating Loss Carryforwards, Foreign | 448 | 543 |
Deferred Tax Assets, Tax Credit Carryforwards, Foreign | 2,580 | 2,580 |
Unrecognized Tax Benefits, Ending Balance | 1,611 | 1,591 | $ 1,545
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 600 |  |
Other Noncurrent Liabilities [Member] |  |  |
Unrecognized Tax Benefits, Ending Balance | 200 | $ 200 |
Foreign Tax Authority [Member] | Middle East [Member] |  |  |
Undistributed Earnings of Foreign Subsidiaries | 22,700 |  |
Foreign Tax Authority [Member] | Ministry of Finance, India [Member] |  |  |
Undistributed Earnings of Foreign Subsidiaries | 800 |  |
Foreign Tax Authority [Member] | UNITED ARAB EMIRATES |  |  |
Undistributed Earnings of Foreign Subsidiaries | 19,200 |  |
Foreign Tax Authority [Member] | SAUDI ARABIA |  |  |
Undistributed Earnings of Foreign Subsidiaries | 3,500 |  |
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries | 200 |  |
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member] |  |  |
Operating Loss Carryforwards, Total | 40,100 |  |
Operating Loss Carryforwards Subject to Expiration | $ 33,800 |  |

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