Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Consolidated Balance Sheets
Preferred stock, Par value (in dollars per share)	$ 1	$ 1
Preferred stock, Liquidation value (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, Shares authorized	300,000	300,000
Preferred stock, Shares issued	73,000	73,000
Preferred stock, Shares outstanding	73,000	73,000
Common stock, Par value (in dollars per share)	$ 1	$ 1
Common Stock, Shares authorized	60,000,000	60,000,000
Common stock, Shares issued	18,779,734	18,729,134
Common stock, Shares outstanding	13,882,910	14,084,328
Treasury stock, Shares	4,896,824	4,644,806