Series D 8% Cumulative, Compounding Exchangeable Preferred Stock (Detail Textuals) (USD $)
6 Months Ended
Jun. 30, 2012
Directors
Dec. 31, 2011
Class of Stock [Line Items]    
Preferred Stock, shares authorized 5,000,000 5,000,000
Number of directors elected by holders of preferred stock 4  
Total Number of directors 7  
Preferred Series D
   
Class of Stock [Line Items]    
Preferred Stock, shares authorized 2,200,000 2,200,000
Preferred Stock, par value ( in dollars per share) 0.01 0.01
Preferred Stock, Outstanding 1,438,359 1,331,814
Preferred Stock, exchanged to common stock 26,816,865  
Dividend payable ( in dollars per share) 0.08  
Maximum number of outstanding preferred shares required for voting as a single class 500,000  
Preferred Stock | Preferred Series D
   
Class of Stock [Line Items]    
Series D preferred stock issued in satisfaction of accrued dividends (in shares) 106,545