Selected Balance Sheet Information - Schedule of Property and equipment, net (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Selected Balance Sheet Information
Total property and equipment, gross	$ 1,226	$ 1,205
Less: accumulated depreciation and amortization	(973)	(935)
Total property and equipment, net	253	270
Computers and office equipment
Selected Balance Sheet Information
Total property and equipment, gross	711	708
Other property, plant and equipment
Selected Balance Sheet Information
Total property and equipment, gross	410	392
Leasehold improvements
Selected Balance Sheet Information
Total property and equipment, gross	94	94
Software
Selected Balance Sheet Information
Total property and equipment, gross	$ 11	$ 11

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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