Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Perpetual Redeemable Preferred Stock:
Series B, par value	$ 0.01	$ 0.01
Series B, authorized	40,000	40,000
Series B, outstanding	0	154.3940
Series B, Share Issued	0	154.3940
Convertible Preferred Stock:
Series C, par value	0.01	0.01
Series C, authorized	10,000	10,000
Series C, outstanding	9,974.185	4,918.100
Series C, Share Issued	9,974.185	4,918.100
Series D, par value	$ 0.01	$ 0.01
Series D, authorized	3,600,000	3,600,000
Series D, outstanding	3,006,000	0
Series D, Share Issued	3,006,000	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	100,000,000	100,000,000
Common stock, outstanding	38,543,944	31,126,245
Common stock, Share Issued	38,543,944	31,126,245