Annual report pursuant to Section 13 and 15(d)

COMMITMENTS AND CONTINGENCIES (Details Textual)

v3.19.1
COMMITMENTS AND CONTINGENCIES (Details Textual) - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Lease Extension Period 5 years    
Operating Leases, Rent Expense, Net $ 1,297,000 $ 742,000 $ 548,000
In Process Research and Development [Member]      
Other Commitment 15,000,000    
Other Commitment, Due in Next Twelve Months 10,100,000    
Other Commitment, Due in Second Year 4,900,000    
New York Office [Member]      
Operating Lease, Liability 7,145,000    
Spain Office [Member]      
Operating Lease, Liability 21,000    
Dallas Office [Member]      
Operating Lease, Liability 19,000    
Cleveland Office And Lab [Member]      
Operating Leases, Rent Expense, Net 5,012,000    
Leasehold Improvements [Member]      
Operating Lease, Cost $ 2,205,000