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Property, Plant, and Equipment - Schedule of Property, plant and equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Total property, plant and equipment	$ 18,753	$ 18,265
Accumulated depreciation and amortization	(14,407)	(14,114)
Property, Plant and Equipment, Net, Total	4,346	4,151
Lab and build-to-suit equipment
Total property, plant and equipment	6,344	6,257
Office equipment
Total property, plant and equipment	19	19
Furniture and fixtures
Total property, plant and equipment	134	134
Computer equipment
Total property, plant and equipment	400	291
Leasehold improvements
Total property, plant and equipment	11,409	11,409
Construction-in-progress
Total property, plant and equipment	$ 447	$ 155

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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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