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Note 4 - Revenue Recognition (Details Textual) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Jan. 31, 2024 | Jan. 31, 2023 | Jan. 31, 2022
Costs Incurred for Uncompleted Contracts, Anticipated Collection Period (Year) | 1 year |  |
Contract with Customer, Liability, Current | $ 495 | $ 1,743 | $ 1,300
Unbilled Receivables, Current | 16,597 | 11,634 |
Middle East [Member] |  |  |
Unbilled Receivables, Current | $ 16,600 | $ 11,600 |

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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479837/606-10-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-8 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479837/606-10-45-2 + Details
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