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Short-Term Debt (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Feb. 19, 2020
Dec. 31, 2020
Short-term Debt (Textual)    
Description of financing agreement The Company entered into a nine month financing agreement with AFCO Credit Corporation for its directors and officers ("D&O") liability insurance in the amount of $2,225. The Company made a down payment of $556, leaving a principal balance of $1,669. The financing bore interest at a rate of 4.25% per annum, and was repaid in monthly installments of $189, which included both principal and interest.  
Debt amount   $ 0
Interest expense   $ 34