Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.2
Summary of Significant Accounting Policies - Financial Instruments Measured at Fair Value (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Liabilities:    
Warrant liability $ 1,836 $ 1,614
Fair Value, Recurring    
Assets:    
Digital currencies 773  
Total 773  
Liabilities:    
Warrant liability 1,836 1,614
Total 1,836 1,614
Level 1 | Fair Value, Recurring    
Assets:    
Digital currencies 773  
Total 773  
Liabilities:    
Warrant liability 0 0
Total 0 0
Level 2 | Fair Value, Recurring    
Assets:    
Digital currencies 0  
Total 0  
Liabilities:    
Warrant liability 1,836 1,614
Total 1,836 1,614
Level 3 | Fair Value, Recurring    
Assets:    
Digital currencies 0  
Total 0  
Liabilities:    
Warrant liability 0 0
Total $ 0 $ 0