Note 7 - Income Taxes (Tables)
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12 Months Ended |
Jan. 31, 2025 |
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| Notes Tables |
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| Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
| | | Fiscal Year | |
| | | 2024 | | | 2023 | |
| Current tax expense: | | | | | | | | |
| Federal | | $ | — | | | $ | — | |
| State | | | — | | | | (58,000 | ) |
| Total current tax benefit (expense) | | $ | — | | | $ | (58,000 | ) |
| Deferred tax expense: | | | | | | | | |
| Federal | | $ | — | | | $ | 86,000 | |
| State | | | — | | | | 18,000 | |
| Total deferred tax benefit (expense) | | $ | — | | | $ | 104,000 | |
| Income tax benefit (expense) | | $ | — | | | $ | 46,000 | |
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| Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
| | | Fiscal Year | |
| | | 2024 | | | 2023 | |
| Federal tax benefit at statutory rate | | $ | 2,134,000 | | | $ | 3,887,000 | |
| State and local tax expense, net of federal | | | — | | | | (28,000 | ) |
| Increase in valuation allowance | | | (1,907,000 | ) | | | (3,994,000 | ) |
| Permanent items: | | | | | | | | |
| Other | | | 1,000 | | | | (36,000 | ) |
| Reserve for uncertain tax position | | | 9,000 | | | | (7,000 | ) |
| Federal research and development (R&D) tax credit | | | (45,000 | ) | | | 33,000 | |
| Stock-based compensation | | | (249,000 | ) | | | 135,000 | |
| Other | | | 57,000 | | | | 56,000 | |
| Income tax benefit (expense) | | $ | — | | | $ | 46,000 | |
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| Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
| | | January 31, | |
| | | 2025 | | | 2024 | |
| Deferred tax assets: | | | | | | | | |
| Allowance for credit losses | | $ | 60,000 | | | $ | 26,000 | |
| Deferred revenue | | | 484,000 | | | | 209,000 | |
| Accruals | | | 96,000 | | | | 67,000 | |
| Net operating loss carryforwards | | | 15,312,000 | | | | 15,748,000 | |
| Stock-based compensation | | | 489,000 | | | | 427,000 | |
| Finite-lived intangible assets | | | 3,830,000 | | | | 1,739,000 | |
| R&D tax credit | | | 1,398,000 | | | | 1,434,000 | |
| Other | | | 1,000 | | | | 1,000 | |
| Total deferred tax assets | | | 21,670,000 | | | | 19,651,000 | |
| Valuation allowance | | | (21,670,000 | ) | | | (19,646,000 | ) |
| Net deferred tax assets | | | — | | | | 5,000 | |
| Deferred tax liabilities: | | | | | | | | |
| Property and equipment | | | — | | | | (5,000 | ) |
| Finite-lived intangible liabilities | | | — | | | | — | |
| Total deferred tax liabilities | | | — | | | | (5,000 | ) |
| Net deferred tax liabilities | | $ | — | | | $ | — | |
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| Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] |
| | | 2024 | | | 2023 | |
| Beginning of fiscal year | | $ | 340,000 | | | $ | 333,000 | |
| Additions for tax positions for the current year | | | — | | | | 9,000 | |
| Additions for tax positions of prior years | | | — | | | | — | |
| Subtractions for tax positions of prior years | | | (9,000 | ) | | | (2,000 | ) |
| End of fiscal year | | $ | 331,000 | | | $ | 340,000 | |
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