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Property and Equipment (Schedule of Property and Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, plant and equipment
Property, plant and equipment, gross	$ 429	$ 415
Less: accumulated depreciation and amortization	(420)	(383)
Property, Plant and Equipment, Net	9	32
Leasehold improvements
Property, plant and equipment
Property, plant and equipment, gross	$ 6	$ 6
Leasehold improvements | Minimum
Property, plant and equipment
Lives in years	2 years	2 years
Leasehold improvements | Maximum
Property, plant and equipment
Lives in years	5 years	5 years
Office equipment and furniture
Property, plant and equipment
Property, plant and equipment, gross	$ 423	$ 409
Office equipment and furniture | Minimum
Property, plant and equipment
Lives in years	3 years
Office equipment and furniture | Maximum
Property, plant and equipment
Lives in years	5 years

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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-Topic 944
-SubTopic 210
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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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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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