Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Derivative liability (Details)

v3.22.1
Summary of Significant Accounting Policies - Derivative liability (Details) - USD ($)
$ in Thousands
1 Months Ended 2 Months Ended 4 Months Ended 12 Months Ended
Jun. 12, 2021
Jun. 30, 2021
Dec. 31, 2020
Sep. 30, 2020
Feb. 28, 2021
Sep. 30, 2019
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Embedded Derivative Liability                  
Conversion price           85.00% 80.00%    
Percentage of shares issued to investors, conversion price equal     80.00% 80.00%          
Unamortized debt discount     $ 118       $ 118 $ 55 $ 118
Loss on extinguishment of debt               $ (12,685) $ (66)
2021 Convertible Notes.                  
Embedded Derivative Liability                  
Interest rate         8.00%        
Number of shares issued upon conversion of debt               4,408,672  
Gross proceeds from issuance         $ 30,000        
Minimum gross proceeds from sale of preferred stock required for conversion         $ 100,000        
Conversion Price As Percentage Of The Price Per Share Paid By The Other Investors 80.00%       80.00%        
Additional consideration receivable in shares               1,000,000  
Carrying value               $ 32,800  
Embedded derivative liability               19,700  
Accrued interest, current               200  
Loss on extinguishment of debt               $ (900)  
2021 Convertible Notes. | NHIC Sub Inc                  
Embedded Derivative Liability                  
Additional consideration receivable in shares 1,000,000 1,000,000