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Patents and Other Intangible Assets (Details 1) - Patents [Member]
Mar. 31, 2019
USD ($)
Finite-Lived Intangible Assets [Line Items]  
2019 (remaining 9 months) $ 130,000
2020 151,000
2021 97,000
2022 64,000
2023 33,000
Thereafter 6,000
Finite-Lived Intangible Assets, Net $ 481,000