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Related Party Transactions (Tables)
12 Months Ended
Dec. 31, 2017
Related Party Transactions [Abstract]  
Summary of milestone payments

Milestones  Payments 
     
(1) filing of an New Drug Application (“NDA”) or regulatory approval for each licensed product  $750,000 
(2) upon the receipt of regulatory approval from the U.S. FDA for each licensed product   1,750,000