Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Financial Instruments Measured at Fair Value (Details)

v3.22.1
Summary of Significant Accounting Policies - Financial Instruments Measured at Fair Value (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Liabilities:      
Warrant liability $ 3,818 $ 3,605 $ 4,443
Fair Value, Recurring      
Assets:      
Digital assets 24,244 32,581  
Total 24,244 32,581  
Liabilities:      
Warrant liability 3,818 3,605  
Total 3,818 3,605  
Level 1 | Fair Value, Recurring      
Assets:      
Digital assets 24,244 32,581  
Total 24,244 32,581  
Liabilities:      
Warrant liability 0 0  
Total 0 0  
Level 2 | Fair Value, Recurring      
Assets:      
Digital assets 0 0  
Total 0 0  
Liabilities:      
Warrant liability 3,818 3,605  
Total 3,818 3,605  
Level 3 | Fair Value, Recurring      
Assets:      
Digital assets 0 0  
Total 0 0  
Liabilities:      
Warrant liability 0 0  
Total $ 0 $ 0