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Fair Value Measurements (Details Narrative) (FaceBank Group, Inc Pre-Merger) (10-K) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2020
Sep. 30, 2020
Dec. 31, 2019
Dec. 31, 2018
Warrant liability - subsidiary   $ 21 $ 24  
Change in fair value of subsidiary warrant liability   $ (3)    
FaceBank Group, Inc Pre-Merger [Member]        
Warrant liability expire date Jan. 28, 2023   Jan. 28, 2023  
Warrant liability - subsidiary $ 39   $ 24 $ 4,528
Change in fair value of subsidiary warrant liability $ 15   $ (4,504)  
Discount percentage of stock price