Income Taxes (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Deferred State and Local Income Tax Expense (Benefit)	$ 0.1	$ 0.1	$ 0.2	$ 0.1
Deferred Tax Assets, Net	$ 1.9		$ 1.9		$ 1.3