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Commitments and Contingencies (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Jun. 30, 2020
Aug. 31, 2019
Jun. 30, 2019
Operating Leases Commitments And Security Deposit [Line Items]              
Recognized revenue $ 293 $ 677 $ 1,440 $ 450      
Security deposit     120   $ 120   $ 154
POD5 Agreement [Member] | Bit5ive, LLC [Member]              
Operating Leases Commitments And Security Deposit [Line Items]              
Recognized revenue $ 7 3 3 44      
Two Settlement and Termination Agreements [Member]              
Operating Leases Commitments And Security Deposit [Line Items]              
Present value of settlement distributions           $ 337  
Gain loss on change in fair value   15 26 176      
Loss contingency liability   58 0 116      
Two Settlement and Termination Agreements [Member] | Monthly Settlement of Distributions [Member]              
Operating Leases Commitments And Security Deposit [Line Items]              
Present value of settlement distributions   $ 43 $ 90 $ 45