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Note 7 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Jan. 31, 2021 | Jan. 31, 2020 | Jan. 31, 2019
Taxes Payable, Total | $ 200 | $ 400 |
Effective Income Tax Rate Reconciliation, Percent, Total | 1.70% | 29.00% |
Operating Loss Carryforwards, Total | $ 41,100 |  |
Deferred Tax Assets, Operating Loss Carryforwards, State and Local | 2,678 | $ 2,567 |
Deferred Tax Assets, Operating Loss Carryforwards, Foreign | 543 | 223 |
Deferred Tax Assets, Tax Credit Carryforwards, Foreign | 2,580 | 2,580 |
Unrecognized Tax Benefits, Ending Balance | 1,591 | 1,545 | $ 1,447
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 500 |  |
Other Noncurrent Liabilities [Member] |  |  |
Unrecognized Tax Benefits, Ending Balance | 200 | $ 100 |
Foreign Tax Authority [Member] | Middle East [Member] |  |  |
Undistributed Earnings of Foreign Subsidiaries | 22,400 |  |
Foreign Tax Authority [Member] | UNITED ARAB EMIRATES |  |  |
Undistributed Earnings of Foreign Subsidiaries | 15,700 |  |
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries | 0 |  |
Foreign Tax Authority [Member] | SAUDI ARABIA |  |  |
Undistributed Earnings of Foreign Subsidiaries | 6,800 |  |
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries | 100 |  |
Foreign Tax Authority [Member] | Ministry of Finance, India [Member] |  |  |
Undistributed Earnings of Foreign Subsidiaries | 4,400 |  |
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries | $ 900 |  |

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