Note 7 - Income Taxes (Details Textual) - USD ($) |
12 Months Ended | |||
|---|---|---|---|---|
Jan. 31, 2025 |
Jan. 31, 2024 |
Jan. 01, 2025 |
Jan. 31, 2023 |
|
| Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00% | ||
| Deferred Tax Assets, Valuation Allowance | $ 21,670,000 | $ 19,646,000 | ||
| Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount | 1,907,000 | |||
| Unrecognized Tax Benefits | 331,000 | 340,000 | $ 333,000 | |
| Domestic Tax Jurisdiction [Member] | ||||
| Operating Loss Carryforwards Subject to Expiration | 64,036,000 | $ 29,083,000 | ||
| Operating Loss Carryforwards Not Subject to Expiration | $ 34,953,000 | |||
| Domestic Tax Jurisdiction [Member] | Research Tax Credit Carryforward [Member] | ||||
| Tax Credit Carryforward, Amount | 1,324,000 | |||
| State and Local Jurisdiction [Member] | ||||
| Operating Loss Carryforwards | 38,568,000 | |||
| State and Local Jurisdiction [Member] | Research Tax Credit Carryforward [Member] | Department of Revenue, Georgia [Member] | ||||
| Tax Credit Carryforward, Amount | $ 94,000 | |||