Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 45,019		$ 44,915
Less: accumulated depreciation and amortization	(40,523)		(39,860)
Total property and equipment, net	4,496		5,055
Depreciation and amortization	714	$ 743
Machinery
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 19,302		19,250
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
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
Computer, network equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,469		2,469
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	$ 1,214		$ 1,162