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Certain Balance Sheet Accounts - Schedule of Intangible Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]    
Gross $ 879 $ 789
Accumulated Amortization (291) (184)
Net 588 605
Patents and Trademarks [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross 602 511
Accumulated Amortization (151) (119)
Net 451 392
Film Production Costs [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross 277 278
Accumulated Amortization (140) (65)
Net $ 137 $ 213