Commitments (Details Textual)	3 Months Ended	9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2017 USD ($)
Operating Leases, Future Minimum Payments, Remainder of Fiscal Year	$ 31,000	$ 31,000
Fifth Avenue, New York [Member]
Operating Leases, Rent Expense	75,000	225,000
Madison Avenue [Member]
Operating Leases, Future Minimum Payments Due	$ 3,200,000	$ 3,200,000