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Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 5,922	$ 5,244
Less accumulated depreciation	(3,545)	(3,118)
Property and equipment, net	2,377	2,126
Computers and Software
Property Plant And Equipment [Line Items]
Property and equipment, gross	596	572
Furniture, Fixtures, and Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	400	299
Manufacturing and Testing Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	3,874	3,444
Construction in Progress
Property Plant And Equipment [Line Items]
Property and equipment, gross	120	18
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 932	$ 911

X

- Definition

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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