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Going Concern (Details) - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Dec. 31, 2016
Going Concern        
Cash and Cash Equivalents $ 3,278,087 $ 11,973,820 $ 8,406,917 $ 17,180,594
Investments Available for Sale 24,821,682   24,648,459  
Working Capital Net 31,500,000      
Accumulated Deficit (245,811,897)   $ (240,262,376)  
Net cash used in operating activities $ (4,604,561) $ (5,076,976)