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Commitments and Contingencies - Additional Information (Detail) - Office Space and Research Facilities Lease - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Commitment And Contingencies [Line Items] |  |  |  |
Operating leases, rent expense | $ 301,000 | $ 255,000 | $ 548,000 | $ 490,000
Operating lease, renewal term | 5 years |  | 5 years |
Lease expiration date |  |  | 2025-11 |

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- Definition Commitment and contingencies. + References No definition available. + Details
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- Definition Operating lease expiration month and year. + References No definition available. + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
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- Details
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