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Significant Accounting Policies, Research, Development and Patent Expenses (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Patents [Member]        
Research, Development and Patent Expenses [Abstract]        
Write-down $ 0.7 $ 0.1 $ 1.1 $ 0.2