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Supplementary Balance Sheet Information - Summary of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 7,438	$ 7,280
Less: Accumulated depreciation	4,063	3,822
Property and equipment, net	3,375	3,458
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 5,930	5,810
Estimated Useful Life	7 years
Vehicles
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 31	31
Estimated Useful Life	5 years
Computer Software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 192	192
Estimated Useful Life	5 years
Computer Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 585	574
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 216	216
Estimated Useful Life	5 years
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 465	$ 457
Leasehold Improvements | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Leasehold Improvements | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	6 years
Construction in Progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 19

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