Preferred Stock Preferred Stock (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Class of Stock [Line Items]
Preferred Stock	$ 772	$ 772	$ 772
Series A [Member]
Class of Stock [Line Items]
Preferred Stock	300		300
Cumulative Preferred Stock
Class of Stock [Line Items]
Preferred Stock	$ 472		$ 472