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v3.22.1

Note 1 - Organization and Summary of Significant Accounting Policies (Details Textual) | 12 Months Ended
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Jan. 31, 2022
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
Minimum [Member] |
Contract With Customer Performance Period (Year) | 3 years
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
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

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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