Note 2 - Summary of Significant Accounting Policies (Tables) |
3 Months Ended | ||||||||||||||||||||
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Apr. 30, 2023 | |||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||
| Accounts Receivable, Allowance for Credit Loss [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- References No definition available.
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