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Convertible Notes, First JDH Note (Details)
$ in Thousands
9 Months Ended 12 Months Ended
Dec. 10, 2021
USD ($)
Oct. 08, 2021
USD ($)
shares
Oct. 05, 2021
USD ($)
shares
Dec. 31, 2019
Dec. 31, 2021
USD ($)
Payment
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Mar. 31, 2019
USD ($)
Mar. 12, 2015
USD ($)
Convertible Notes [Abstract]                  
Balance outstanding         $ 218,551 $ 173,289      
Repayment of convertible notes         $ 13,950 0 $ 0    
First JDH Note [Member]                  
Convertible Notes [Abstract]                  
Face amount   $ 3,480 $ 120           $ 4,000
Number of bullet payments | Payment         1        
Accrued and unpaid interest           $ 238   $ 155  
Interest rate       0.00%          
Balance outstanding         $ 0        
Issuance of common stock upon conversion of convertible notes (in shares) | shares   2,900,000 100,000            
Unamortized debt discounts expensed $ 30 $ 543 $ 19            
Repayment of convertible notes $ 200                
First JDH Note [Member] | LIBOR [Member]                  
Convertible Notes [Abstract]                  
Term of variable rate         3 months        
Margin on variable rate           5.00%