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Reduction in Workforce - Schedule of Amount Expected to be Incurred and Liability Related to Restructuring (Details) - USD ($) | 3 Months Ended | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2019
Restructuring charges incurred during the year | $ 600,000 |
Amounts paid during the year | (66,000) |
Accrued restructuring costs as of December 31, 2019 | 516,000 | $ 516,000
One-time Employee Termination Benefits |  |
Restructuring charges incurred during the year |  | 582,000
Amounts paid during the year |  | (66,000)
Accrued restructuring costs as of December 31, 2019 | $ 516,000 | $ 516,000

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