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Nature of Business and Significant Accounting Policies (Details)
 3 Months Ended
Mar. 31, 2013
Office
Location
Nature of Business and Significant Accounting Policies (Textual) [Abstract]  
Number of locations 232
Nature of Business and Significant Accounting Policies (Additional Textual) [Abstract]  
Number of offices opened 11
Alabama [Member]
  
Nature of Business and Significant Accounting Policies (Textual) [Abstract]  
Number of locations 46
New Mexico [Member]
  
Nature of Business and Significant Accounting Policies (Textual) [Abstract]  
Number of locations 2
North Carolina [Member]
  
Nature of Business and Significant Accounting Policies (Textual) [Abstract]  
Number of locations 28
Oklahoma [Member]
  
Nature of Business and Significant Accounting Policies (Textual) [Abstract]  
Number of locations 7
South Carolina [Member]
  
Nature of Business and Significant Accounting Policies (Textual) [Abstract]  
Number of locations 70
Tennessee [Member]
  
Nature of Business and Significant Accounting Policies (Textual) [Abstract]  
Number of locations 20
Texas [Member]
  
Nature of Business and Significant Accounting Policies (Textual) [Abstract]  
Number of locations 57