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v3.21.2

401(k) Plan (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
401(k) Plan |  |  |  |
Match percentage | 50.00% |  | 50.00% |
Company match contribution, maximum | $ 3,500 |  | $ 3,500 |
Contributions expense recognized | $ 100,000 |  | $ 300,000 |
Contributions made |  | $ 0 |  | $ 0

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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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- Definition Percentage employer matches of the employee's percentage contribution matched. + References No definition available. + Details
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