XML 61 R36.htm IDEA: XBRL DOCUMENT v2.4.0.8
General - Additional Information (Detail) (USD $)
9 Months Ended 0 Months Ended 0 Months Ended 0 Months Ended 9 Months Ended
Sep. 30, 2014
Segment
Dec. 31, 2013
Aug. 06, 2014
CresCom Bank
Branch
Aug. 06, 2014
CresCom Bank
Aug. 06, 2014
CresCom Bank
North Carolina
Branch
Aug. 06, 2014
CresCom Bank
South Carolina
Branch
Oct. 24, 2014
Subsequent Event
Bank of America
Branch
Oct. 24, 2014
Subsequent Event
Bank of America
Oct. 24, 2014
Subsequent Event
Bank of America
Southwestern Virginia
Branch
Oct. 24, 2014
Subsequent Event
Bank of America
North Carolina
Branch
Sep. 30, 2014
Series A Preferred Stock
Dec. 31, 2013
Series A Preferred Stock
Sep. 30, 2013
Series A Preferred Stock
Summary Of Significant Accounting Policies [Line Items]                          
Number of business segment 1                        
Number of branches acquired             7   6 1      
Deposit held on acquisition date by acquiree               $ 318,000,000          
Number of branches sold     13   10 3              
Total deposit of branches to be sold 1,932,275,000 1,950,742,000   230,000,000                  
Total loans of branches to be sold $ 1,741,633,000 $ 1,686,644,000   $ 59,000,000                  
Dividend Rate                     6.00%    
Each share convertible into shares 69                        
Preferred stock redemption date May 20, 2016                        
Number of Series A Noncumulative Preferred Stock Shares                     15,151 15,251 15,471