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Equipment and Improvements (Details)
6 Months Ended
Jun. 30, 2012
Equipment and Improvements (Textual) [Abstract]  
Estimated useful lives of the assets Ranging from three to seven years
Maximum [Member]
 
Equipment and Improvements (Textual) [Abstract]  
Estimated useful lives 7 years
Minimum [Member]
 
Equipment and Improvements (Textual) [Abstract]  
Estimated useful lives 3 years