Supplemental Financial Statement Information - Property and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, including amounts related to finance leases	$ 14,965	$ 15,380
Finance lease, accumulated depreciation	200	200
Less: accumulated depreciation (includes $0.2 million under finance leases as of December 31, 2020 and 2019)	2,764	2,215
Property and equipment, net	12,201	13,165
Furniture, equipment and software
Property, Plant and Equipment [Line Items]
Assets under finance lease	600	500
Property, plant, and equipment, including amounts related to finance leases	$ 2,978	3,130
Furniture, equipment and software \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Furniture, equipment and software \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	7 years
Personal property
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, including amounts related to finance leases	$ 1,130	1,105
Property, plant and equipment, useful life	5 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, including amounts related to finance leases	$ 844	1,077
Property, plant and equipment, useful life	5 years
Land improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, including amounts related to finance leases	$ 601	601
Property, plant and equipment, useful life	15 years
Building
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, including amounts related to finance leases	$ 8,088	8,064
Property, plant and equipment, useful life	39 years
Land
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, including amounts related to finance leases	$ 691	691
Work in process
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, including amounts related to finance leases	$ 633	$ 712

Finance Lease, Right-Of-Use Asset, Accumulated Depreciation

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Amount, after accumulated amortization, of right-of-use asset from finance lease.

+ References

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Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease.

+ References

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Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset.

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Amount, before accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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