Income Taxes Benefit From Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Benefit from Income Taxes [Abstract]
Current Federal Tax Expense (Benefit)		$ 208	$ 3	$ (211)
Current State and Local Tax Expense (Benefit)		(796)	(28)	(924)
Income Tax Expense (Benefit)	(25)	(588)	(25)	(1,135)
Current Income Tax Expense (Benefit)		(588)	(25)	(1,135)
Deferred Income Tax Expense (Benefit)		$ 0	$ 0	$ 0