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Income Tax Disclosure (Details) - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Operating Loss Carryforwards [Line Items]        
Effective Income Tax Rate, Continuing Operations 0.00% 0.00% (1.00%)  
Deferred Tax Assets, Tax Credit Carryforwards, Foreign $ 2,462,000 $ 2,521,000    
Operating Loss Carryforwards 310,000,000      
R&E tax credit carryforward for future use 12,600,000      
Unrecognized Tax Benefits 183,000 183,000 $ 192,000 $ 192,000
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit 0      
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount 1,835,000 $ 31,359,000 $ 0  
Cameleon Acquistion [Member]        
Operating Loss Carryforwards [Line Items]        
Operating Loss Carryforwards $ 35,800,000