Note 3 - Accounts Receivable (Details Textual) - Customer Concentration Risk [Member] Pure in Thousands |
3 Months Ended | 6 Months Ended |
|---|---|---|
Jul. 31, 2025 |
Jul. 31, 2025 |
|
| Revenue Benchmark [Member] | ||
| Number of Major Customers | 0 | |
| Accounts Receivable [Member] | ||
| Number of Major Customers | 0 |