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Note 4 - Property and Equipment, Net - Summary of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Property and equipment, gross	$ 794	$ 794
Less accumulated depreciation	(773)	(761)
Property and equipment, net	21	33
Computer Equipment and Software [Member]
Property and equipment, gross	165	165
Laboratory and Manufacturing Equipment [Member]
Property and equipment, gross	576	576
Furniture and Fixtures [Member]
Property and equipment, gross	27	27
Leasehold Improvements [Member]
Property and equipment, gross	$ 26	$ 26

X

- Definition

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

+ References

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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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