Equipment, Software and Leasehold Improvements (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Equipment, Software and Leasehold Improvements, Net [Abstract]
Equipment, software and leasehold improvements	$ 6,318	$ 6,151
Accumulated depreciation	(5,564)	(5,379)
Equipment, software and leasehold improvements, net	754	772
Depreciation expense	185	304
Computer and Equipment [Member]
Equipment, Software and Leasehold Improvements, Net [Abstract]
Equipment, software and leasehold improvements	2,381	2,363
Software [Member]
Equipment, Software and Leasehold Improvements, Net [Abstract]
Equipment, software and leasehold improvements	2,292	2,291
Capitalization of internal-use software cost	0	100
Leasehold Improvements [Member]
Equipment, Software and Leasehold Improvements, Net [Abstract]
Equipment, software and leasehold improvements	805	659
Furniture and Fixtures [Member]
Equipment, Software and Leasehold Improvements, Net [Abstract]
Equipment, software and leasehold improvements	$ 840	$ 838

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 of increase (decrease) in capitalized computer software costs.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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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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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.

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