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Leases - Agreement (Details) |  | 1 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jul. 02, 2021 USD ($) ft² | Mar. 31, 2017 USD ($) ft² lease | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Leases |  |  |  |  |  |
Operating lease right-of-use asset |  |  | $ 5,371,000 |  |  | $ 4,950,000
Lease liability |  |  | 6,265,000 |  |  | $ 5,959,000
Sublease Income |  |  | $ 68,000 | $ 22,000 |  |
Newark, California |  |  |  |  |  |
Leases |  |  |  |  |  |
Number of operating lease agreement | lease |  | 1 |  |  |  |
Area of land | ft² |  | 42,900 |  |  |  |
Security deposit |  | $ 450,000 |  |  | $ 225,000 |
Newark, California | Second Amendment |  |  |  |  |  |
Leases |  |  |  |  |  |
Area of land | ft² | 15,000 |  |  |  |  |
Additional base rent over the lease term | $ 1,500,000 |  |  |  |  |
Operating lease right-of-use asset | 1,400,000 |  |  |  |  |
Lease liability | 1,400,000 |  |  |  |  |
Additional security deposit | $ 0 |  |  |  |  |

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- Definition Represents the number of operating lease agreement. + References No definition available. + Details
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- Definition Area of land held. + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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- Definition The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8,17) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of sublease income excluding finance and operating lease expense. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 + Details
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