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Stockholders' Equity / (Deficit) - Summary of Fair Value of Options Granted (Details) (FaceBank Group, Inc. Pre-Merger) (10-K) - FaceBank Group, Inc Pre-Merger [Member] - Stock Options [Member] - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Exercise price $ 28.20
Expected stock price volatility 222.00%
Risk-free rate of interest 2.78%
Contractual term (years) 0 years 10 years