Note 9 - Property and Equipment - Components of Property and Equipment (Details) - USD ($) $ in Thousands	Jan. 31, 2019	Apr. 30, 2018
Building and leasehold improvements	$ 1,013	$ 1,013
Furniture and equipment	4,037	4,031
	5,050	5,044
Accumulated depreciation and amortization	(3,853)	(3,673)
Total property and equipment, net	$ 1,197	$ 1,371

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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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.

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- 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.

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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.

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