Stockholders' Equity (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012 Votes	Dec. 14, 2012	Dec. 31, 2011
Stockholders Equity (Additional Textual) [Abstract]
Common Stock Split Ratio Declared	2
Percentage of stock dividend represents stock split	100.00%
Additional shares issued after stock split	12,460,000
Reduction in retained earnings due to stock split		$ 12,460,000
Preferred stock dividends per share	$ 1.375
Redemption price of preferred stock per share	$ 25
Preferred stock votes per share	2.2835
Common stock, par value	$ 1		$ 1
Convertable preferred stock shares converted	456,358
Preferred stock outstanding	61,935		518,293
Common Stock [Member]
Stockholders' Equity (Textual) [Abstract]
Rate of conversion preferred stock into common stock	2.2835