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License Agreement (Details Narrative) - USD ($)
3 Months Ended
Jan. 23, 2019
Mar. 31, 2019
Mar. 31, 2018
Deferred revenue   $ 2,263,294
License Agreement [Member]      
Regulatory milestone amount $ 31,500,000    
Payments in cash discounted, percentage 5.00%    
First two milestone ordinary shares   17,572,815  
First two milestone ordinary shares, value   $ 9,987,295  
License Agreement [Member] | First Obligation Member [Member]      
Deferred revenue   2,871,063  
License Agreement [Member] | Second Obligation Member [Member]      
Deferred revenue   607,769  
License Agreement [Member] | Intellectual Property [Member] | First Obligation Member [Member]      
Revenue allocated to performance obligations   $ 7,116,232  
License Agreement [Member] | Circassia Pharmaceuticals PLC [Member]      
Milestones payment $ 7,350,000    
Royalty percentage owed on sale of licensed product revenues. 5.00%    
Payment of milestone ordinary shares, value $ 3,150,000    
Payment of milestone ordinary shares 5,271,844    
Annual Gross profit royalty percentage 14.00%    
Annual Gross profit royalty amount $ 100,000,000    
License Agreement [Member] | Circassia Pharmaceuticals PLC [Member] | Hospital and Clinic Settings [Member]      
Payments for royalties 8,400,000    
License Agreement [Member] | Circassia Pharmaceuticals PLC [Member] | United States [Member]      
Payments for royalties $ 12,600,000    
One-time royalty percentage 5.00%    
Royalty gross profit amount $ 50,000,000    
License Agreement [Member] | Circassia Pharmaceuticals PLC [Member] | China [Member]      
Payments for royalties $ 1,050,000    
One-time royalty percentage 5.00%    
Royalty gross profit amount $ 20,000,000    
License Agreement [Member] | Circassia Pharmaceuticals PLC [Member] | United States and China [Member]      
Annual Gross profit royalty percentage 15.00%    
Annual Gross profit royalty amount $ 100,000,000    
License Agreement [Member] | Maximum [Member]      
Milestones payment $ 32,500,000    
License Agreement [Member] | Maximum [Member] | Circassia Pharmaceuticals PLC [Member]      
Annual Gross profit royalty percentage 19.00%    
Annual Gross profit royalty amount $ 100,000,000    
License Agreement [Member] | Maximum [Member] | Circassia Pharmaceuticals PLC [Member] | United States and China [Member]      
Annual Gross profit royalty percentage 20.00%    
Annual Gross profit royalty amount $ 100,000,000