Annual report pursuant to Section 13 and 15(d)

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

v3.20.1
Property and Equipment (Schedule of Property and Equipment) (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Feb. 29, 2020
USD ($)
Property, Plant and Equipment [Line Items]      
Total cost of property and equipment $ 5,151 $ 93  
Less accumulated depreciation (100) (67)  
Property and equipment, net 5,051 26  
Depreciation expense 100 5,200  
Patents [Member]      
Property, Plant and Equipment [Line Items]      
Depreciation expense $ 90    
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    
Bitmain [Member] | Miners received at Company's Oklahoma City facility [Member] | Subsequent Event [Member]      
Property, Plant and Equipment [Line Items]      
Number of computers acquired     1,000
Value of computers acquired     $ 1,400
Miners [Member]      
Property, Plant and Equipment [Line Items]      
Total cost of property and equipment $ 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 $ 103 $ 93