Note 9 - Property and Equipment - Components of Property and Equipment (Details) - USD ($) |
Jul. 31, 2025 |
Apr. 30, 2025 |
May 01, 2019 |
|---|---|---|---|
| Building and leasehold improvements | $ 652,000 | $ 652,000 | |
| Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Total property and equipment, net | Total property and equipment, net | |
| Operating lease - right-of-use asset | $ 2,764,000 | 3,037,000 | $ 9,575,000 |
| Furniture and equipment | 2,430,000 | 2,430,000 | |
| Property, Plant and Equipment, Gross | 5,846,000 | 6,119,000 | |
| Accumulated depreciation and amortization | (2,675,000) | (2,644,000) | |
| Total property and equipment, net | $ 3,171,000 | $ 3,475,000 |
| X | ||||||||||
- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Indicates line item in statement of financial position that includes operating lease right-of-use asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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