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Patents, Trademark Rights and Other Intangibles (FASB ASC 350-30 General Intangibles Other than Goodwill) (Details Narrative) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Abandonment expense $ 41 $ 7  
Amortization expenses 64 56  
Accumulated amortization 272 249  
Patents [Member]      
Total cost 1,183 $ 1,107  
Additions to patent costs and licensing fees 118   $ 49
Patent and Trademark Rights [Member]      
2019 64    
2020 64    
2021 64    
2022 64    
2023 $ 64