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Note 17 - Segment Reporting (Details Textual) | 12 Months Ended
--- | ---
Jan. 31, 2025 USD ($) | Jan. 31, 2024 USD ($)
Number of Operating Segments | 2 |
Revenue from Contract with Customer, Excluding Assessed Tax | $ 46,863,000 | $ 36,510,000
Depreciation | 306,000 | 383,000
Amortization of Intangible Assets | 638,000 | 795,000
Operating Lease, Right-of-Use Asset | $ 1,320,000 | 1,324,000
Seamap Marine Products [Member] |  |
Number of Operating Segments | 1 |
Seamap Marine Products [Member] | Customer One [Member] |  |
Revenue from Contract with Customer, Excluding Assessed Tax | $ 16,900,000 | 7,600,000
Seamap Marine Products [Member] | Customer Two [Member] |  |
Revenue from Contract with Customer, Excluding Assessed Tax | $ 10,100,000 | 7,100,000
Seamap Marine Products [Member] | Customer Three [Member] |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  | $ 5,100,000
Seamap Marine Products [Member] | Customer Concentration Risk [Member] | Revenue Benchmark [Member] |  |
Number of Major Customers | 2 | 3

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