XML 28 R36.htm IDEA: XBRL DOCUMENT v2.4.0.6
STOCKHOLDERS' EQUITY (Details) (USD $)
 3 Months Ended 6 Months Ended 1 Months Ended 6 Months Ended 12 Months Ended 6 Months Ended 12 Months Ended 191 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Jun. 30, 2012
Year from November 1, 2011 to October 31, 2012
Jun. 30, 2012
Year from November 1, 2012 to October 31, 2013
Jun. 30, 2012
Year from November 1, 2013 to October 31, 2014
Jun. 30, 2012
November 1, 2014 and thereafter
Jun. 30, 2012
Debentures
Aug. 31, 2010
Preferred stock
director
Jun. 30, 2012
Preferred stock
director
Q
Dec. 31, 2010
Preferred stock
Jun. 30, 2012
Preferred stock
Minimum
series
Dec. 31, 2010
Common stock
Jun. 30, 2012
Common stock
Stockholders equity                          
Preferred stock, shares issued 1,213,142 1,213,142             1,213,142        
Preferred stock, shares outstanding 1,213,142 1,213,142             1,213,142        
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001             $ 10.00        
Dividend rate (as a percent) 6.00%               6.00%        
Liquidation preference (in dollars per share)                 $ 10        
Number of shares to be issued for each preferred stock upon conversion                 0.42553        
Conversion price (in dollars per share)                 $ 23.50        
Shares reserved for future issuance upon conversion                 516,228        
Number of shares converted                   833,671      
Number of shares issued upon conversion                       1,655,599 1,776,858
Closing price of stock (in dollars per share)                     $ 35.25    
Percentage of the closing sales price of the entity's common stock that the conversion price must exceed in order for the preferred stock to be convertible                 150.00%        
Number of trading days within 30 trading days in which the closing price of the entity's common stock must exceed the conversion price for the preferred stock to be convertible                     20 days    
Number of series                     1    
Number of trading days during which the closing price of the entity's common stock must exceed the conversion price for at least 20 days in order for the preferred stock to be convertible                 30 days        
Number of trading days prior to notice of automatic conversion                 5 days        
Number of quarters in which no preferred stock dividends have been paid                 6        
Number of Board of Directors to be elected by Preferred Stock holders if entity fails to pay dividends on Preferred Stock                 2        
Number of Board of Directors elected by the Preferred Stock holders when the entity failed to pay dividends on Preferred Stock               2          
Redemption price per share (in dollars per share)     $ 10.18 $ 10.12 $ 10.06 $ 10.00              
Interest rate (as a percent)             6.00%            
Debt principal amount per share, basis for exchange (in dollars per share)             $ 10            
Debt instrument, term             25 years