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Schedule of Amortization of Patents and Trademarks (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]      
2022 $ 75    
2023 149    
2024 174    
2025 195    
2026 231    
Thereafter 1,150    
Total $ 1,974 $ 1,498 $ 1,151