Preferred Stock In Text Linking (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2012
Series A [Member]
Class of Stock [Line Items]
Preferred Stock, Redemption Price Per Share	$ 21.00
Cumulative Preferred Stock
Class of Stock [Line Items]
Preferred Stock, Redemption Price Per Share	$ 16.00
Preferred Stock, $25 par value [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Authorized	400
Preferred Stock, $1 Par Value [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Authorized	1,000