CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Common stock per share dividend amount	$ 0.70	$ 0.70
Retained earnings [Member]
Common stock per share dividend amount	$ 0.7	$ 0.7
Series C stock warrants [Member]
Exercise of warrants into shares of common stock		407,542
Series C stock warrants [Member] | Common stock [Member]
Exercise of warrants into shares of common stock		186,589