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Retirement Plan - Additional Information (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Retirement Benefits [Abstract] |  |  |
Defined contribution plan, description | This plan covered all full-time employees that have been employed at least two of the immediately preceding five years and are over 21 years old. | This plan covered all full-time employees that have been employed at least two of the immediately preceding five years and were over 21 years old. |
Company contribution of each employee, percent | 15.00% | 15.00% |
Contribution by employer | $ 135,000 | $ 135,000 | $ 181,000

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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
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- Definition Description of defined contribution pension and other postretirement plans. + References No definition available. + Details
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