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Note 6 - Supplemental Statements of Cash Flows Information (Tables) | 12 Months Ended
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Jan. 31, 2022
Notes Tables |
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] |
|  | Year Ended January 31, |
|  | 2022 |  |  | 2021 |
Interest paid |  | $ | 31 |  |  | $ | 40 |
Income taxes paid, net |  |  | 355 |  |  |  | 336 |

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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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