| 
           LOANS (Details Of Loans) (Detail) (USD $) 
        In Thousands, unless otherwise specified  | 
        
           Mar. 31, 2014 
         | 
        
           Dec. 31, 2013 
         | 
        
           Mar. 31, 2013 
         | 
        
           Dec. 31, 2012 
         | 
      
|---|---|---|---|---|
| Accounts Notes and Loans Receivable [Line Items] | ||||
| Total Loans | $ 2,937,797 | $ 2,858,868 | ||
| Less allowance for loan losses | (31,728) | (30,663) | (27,679) | (26,258) | 
| Net Loans | 2,906,069 | 2,828,205 | ||
| Total Loans | 100.00% | 100.00% | ||
| 
           Commercial Financial and Agricultural Financing Receivable [Member] 
         | 
        ||||
| Accounts Notes and Loans Receivable [Line Items] | ||||
| Total Loans | 1,306,058 | 1,278,649 | ||
| Less allowance for loan losses | (10,980) | (11,170) | (8,951) | (8,233) | 
| Total Loans | 44.46% | 44.73% | ||
| 
           Commercial Real Estate Construction Financing Receivable [Member] 
         | 
        ||||
| Accounts Notes and Loans Receivable [Line Items] | ||||
| Total Loans | 157,127 | 151,868 | ||
| Less allowance for loan losses | (6,058) | (5,809) | (6,642) | (6,511) | 
| Total Loans | 5.35% | 5.31% | ||
| 
           Commercial Mortgage Loans Owner Occupied [Member] 
         | 
        ||||
| Accounts Notes and Loans Receivable [Line Items] | ||||
| Total Loans | 711,067 | 710,372 | ||
| Total Loans | 24.20% | 24.85% | ||
| 
           One To Four Family Mortgage Loans [Member] 
         | 
        ||||
| Accounts Notes and Loans Receivable [Line Items] | ||||
| Total Loans | 285,368 | 278,621 | ||
| Total Loans | 9.71% | 9.74% | ||
| 
           Other Real Estate Mortgage Loans [Member] 
         | 
        ||||
| Accounts Notes and Loans Receivable [Line Items] | ||||
| Total Loans | 428,391 | 391,396 | ||
| Total Loans | 14.58% | 13.69% | ||
| 
           Residential Real Estate Mortgage Loans [Member] 
         | 
        ||||
| Accounts Notes and Loans Receivable [Line Items] | ||||
| Total Loans | 1,424,826 | 1,380,389 | ||
| Less allowance for loan losses | (8,137) | (7,495) | (5,737) | (4,912) | 
| Total Loans | 48.49% | 48.28% | ||
| 
           Consumer Portfolio Segment [Member] 
         | 
        ||||
| Accounts Notes and Loans Receivable [Line Items] | ||||
| Total Loans | 49,786 | 47,962 | ||
| Less allowance for loan losses | $ (951) | $ (855) | $ (164) | $ (199) | 
| Total Loans | 1.70% | 1.68% |