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Note 4 - Property and Equipment, Net - Summary of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Computer equipment and software	$ 801	$ 789
Less accumulated depreciation	(662)	(619)
Property and equipment, net	139	170
Computer Equipment and Software [Member]
Computer equipment and software	174	161
Laboratory and Manufacturing Equipment [Member]
Computer equipment and software	574	575
Furniture and Fixtures [Member]
Computer equipment and software	27	27
Leasehold Improvements [Member]
Computer equipment and software	$ 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.

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