XML 10 R48.htm IDEA: XBRL DOCUMENT v2.4.0.6
Share Capital (Details Textual) (USD $)
In Millions, except Share data, unless otherwise specified
 6 Months Ended
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Oct. 07, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2010
Share Capital (Additional Textual) [Abstract]              
Preferred stock 50,000,000            
Preferred stock par value $ 0.001            
Preferred stock issued 0            
Repurchase of class A common stock       675,000      
Percentage of repurchase of class A common stock       5.00%      
Class A Stock [Member]
              
Share Capital (Textual) [Abstract]              
Common stock 50,000,000            
Common stock par value $ 0.001            
Common stock issued 13,489,162   13,572,265 13,572,265      
common stock outstanding 13,489,162 13,489,162 13,572,265   13,568,945 13,535,063 13,268,522
Repurchase and cancelled stock 99,900            
Total Consideration of repurchase and cancelled stock $ 1.6            
Repurchase and cancelled stock par value $ 15.52            
Class B Stock [Member]
              
Share Capital (Textual) [Abstract]              
Common stock 99,680            
Common stock par value $ 0.001            
Common stock issued 99,680   99,680        
common stock outstanding 99,680   99,680