Shareholders Equity Parentheticals (USD $)	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Series A Preferred Stock [Member]
Preferred Stock, Dividend Rate, Per-Dollar-Amount	$ 0.975	$ 0.975
Series C Preferred Stock [Member]
Preferred Stock, Dividend Rate, Per-Dollar-Amount	$ 1	$ 1