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Commitments (Details) - USD ($)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Fifth Avenue New York [Member]    
Operating Leases, Rent Expense $ 110,000 $ 110,000
Operating Leases, Future Minimum Payments Due 2,600,000  
17 State New York    
Operating Leases, Rent Expense $ 92,000 $ 92,000