Note 10 - Employee Retirement Plan (Details Textual) - USD ($) |
12 Months Ended | |
|---|---|---|
Jan. 31, 2025 |
Jan. 31, 2024 |
|
| Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 50.00% | |
| Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 4.00% | |
| Defined Contribution Plan, Cost | $ 172,000 | $ 242,000 |