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Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 44,306		$ 44,306		$ 47,751
Less: accumulated depreciation and amortization	(38,515)		(38,515)		(40,878)
Total property and equipment, net	5,791		5,791		6,873
Depreciation and amortization	728	$ 700	1,471	$ 1,414
Machinery
Property, Plant and Equipment [Line Items]
Property and equipment, gross	18,879		$ 18,879		21,333
Machinery | Minimum
Property, Plant and Equipment [Line Items]
Useful Lives			3 years
Machinery | Maximum
Property, Plant and Equipment [Line Items]
Useful Lives			15 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	769		$ 769		1,209
Furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Useful Lives			3 years
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Useful Lives			15 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	21,265		$ 21,265		21,333
Computer, network equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,402		$ 2,402		2,999
Computer, network equipment and software | Minimum
Property, Plant and Equipment [Line Items]
Useful Lives			3 years
Computer, network equipment and software | Maximum
Property, Plant and Equipment [Line Items]
Useful Lives			7 years
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 991		$ 991		$ 877

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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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