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The Paycheck Protection Program (PPP) Loan (Details) - USD ($)
$ in Thousands
12 Months Ended
May 08, 2020
Dec. 31, 2021
Gain on forgiveness of debt   $ 251
PPP Loan    
Proceeds from loan $ 251  
Loan term (in years) 2 years  
Interest rate (as a percent) 1.00%  
Gain on forgiveness of debt   $ 251