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Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Property, Plant and Equipment [Line Items] |  |  |  |  |
Finance lease right-of-use asset | $ 13 |  | $ 13 |  | $ 13
Property and equipment at cost | 3,199 |  | 3,199 |  | 3,477
Less: accumulated depreciation | (2,614) |  | (2,614) |  | (2,802)
Property and equipment, net | 585 |  | 585 |  | 675
Depreciation | 43 | $ 53 | 87 | $ 100 |
Equipment |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Property and equipment, gross | 1,111 |  | $ 1,111 |  | 1,308
Equipment | Minimum |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Useful life (in years) |  |  | 3 years |  |
Equipment | Maximum |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Useful life (in years) |  |  | 15 years |  |
Tooling |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Property and equipment, gross | 414 |  | $ 414 |  | 384
Tooling | Minimum |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Useful life (in years) |  |  | 2 years |  |
Tooling | Maximum |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Useful life (in years) |  |  | 5 years |  |
Vehicles |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Property and equipment, gross | 83 |  | $ 83 |  | 83
Useful life (in years) |  |  | 5 years |  |
Furniture and fixtures |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Property and equipment, gross | 86 |  | $ 86 |  | 86
Useful life (in years) |  |  | 5 years |  |
Computer software |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Property and equipment, gross | 1,144 |  | $ 1,144 |  | 1,194
Useful life (in years) |  |  | 3 years |  |
Leasehold improvements |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Property and equipment, gross | 142 |  | $ 142 |  | 169
UV - Robots |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Property and equipment, gross | 105 |  | $ 105 |  | 105
Useful life (in years) |  |  | 5 years |  |
Projects in progress |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Property and equipment, gross | $ 101 |  | $ 101 |  | $ 135

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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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- Definition Amount, before accumulated amortization, of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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- Definition Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918686-209980 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + Details
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