| 
           Significant Accounting Policies (Tables) 
         | 
        6 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 
           Jun. 30, 2011 
         | 
      |||||||||||
| Significant Accounting Policies | |||||||||||
| Estimated Useful Lives Of Assets | 
  | 
      
| X | ||||||||||
| 
             
- Definition 
          Schedule of Estimated Useful Lives of Assets [Text Block] 
  | 
        
| X | ||||||||||
| 
             
- Details 
          
  |