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v3.25.1

Note 1 - Organization and Summary of Significant Accounting Policies (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Jan. 31, 2025 | Jan. 31, 2024
Working Capital (Deficit) | $ 23,500,000 | $ 18,100,000
Cash and Cash Equivalents, at Carrying Value | 5,336,000 | 5,289,000
Product Warranty Expense | $ 900,000 | $ 400,000
Customer Relationships [Member] |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 8 years |
Building [Member] |  |
Property, Plant and Equipment, Useful Life (Year) | 30 years |
Property Improvements [Member] |  |
Property, Plant and Equipment, Useful Life (Year) | 10 years |
Maximum [Member] |  |
Contract With Customer Performance Period (Year) | 12 years |
Property, Plant and Equipment, Useful Life (Year) | 7 years |
Maximum [Member] | Proprietary Rights, Developed Technology [Member] |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 15 years |
Maximum [Member] | Patents [Member] |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 10 years |
Minimum [Member] |  |
Property, Plant and Equipment, Useful Life (Year) | 3 years |
Minimum [Member] | Proprietary Rights, Developed Technology [Member] |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 10 years |
Minimum [Member] | Patents [Member] |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 8 years |

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