Income Taxes (Details Textual) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Operating Loss Carryforwards	$ 222.8
Valuation Allowance	92.1	$ 91.3
Valuation Allowance, Deferred Tax Asset, Change in Amount	0.8
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	$ 133.0
State and Local Jurisdiction [Member] | Maximum [Member]
Operating Loss Carryforward Expiration Year	2034
State and Local Jurisdiction [Member] | Minimum [Member]
Operating Loss Carryforward Expiration Year	2029
Federal [Member]
Operating Loss Carryforwards	$ 222.8
Federal [Member] | Maximum [Member]
Operating Loss Carryforward Expiration Year	2034
New York State [Member]
Discontinued Operation, Tax Effect of Adjustment to Prior Period Gain (Loss) on Disposal	$ 34.5
New York City [Member]
Discontinued Operation, Tax Effect of Adjustment to Prior Period Gain (Loss) on Disposal	$ 29.0