Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Narrative (Details)

v3.21.2
Summary of Significant Accounting Policies - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Jan. 01, 2021
Dec. 31, 2020
Debt Instrument [Line Items]            
Right-of-use asset $ 1,486   $ 1,486   $ 2,101 $ 0
Operating lease liabilities 1,718   1,718   2,101  
Short-term deferred rent         8  
Long-term deferred rent         180  
Purchase of digital currencies     1,497 $ 0    
Proceeds from receipt of digital assets     87      
Impairment of digital currencies $ 0 $ 0 $ 776 $ 0    
Accounting Standards Update 2016-02            
Debt Instrument [Line Items]            
Right-of-use asset         2,101  
Operating lease liabilities         $ 2,101