Annual report pursuant to Section 13 and 15(d)

Property and Equipment (Schedule of Property and Equipment) (Details)

v3.21.1
Property and Equipment (Schedule of Property and Equipment) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Feb. 28, 2020
USD ($)
Property, Plant and Equipment [Line Items]      
Total cost of property and equipment $ 14,489 $ 5,151  
Less accumulated depreciation (4,346) (100)  
Property and equipment, net 10,143 5,051  
Depreciation expense 4,500 $ 100  
Patents [Member]      
Property, Plant and Equipment [Line Items]      
Depreciation expense 200    
Bitmain [Member]      
Property, Plant and Equipment [Line Items]      
Number of computers acquired   4,000  
Value of computers acquired   $ 6,300  
Bitmain [Member] | Miners received at Company's Oklahoma City facility [Member]      
Property, Plant and Equipment [Line Items]      
Number of computers acquired   3,000 1,000
Value of computers acquired     $ 1,400
Miners [Member]      
Property, Plant and Equipment [Line Items]      
Total cost of property and equipment 14,406 $ 5,010  
Leasehold Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Total cost of property and equipment 38  
Office and computer equipment [Member]      
Property, Plant and Equipment [Line Items]      
Total cost of property and equipment $ 83 $ 103