| 
           DEPOSITS (Detail) (USD $) 
        In Thousands, unless otherwise specified  | 
        
           Dec. 31, 2012 
         | 
        
           Dec. 31, 2011 
         | 
      
|---|---|---|
| Total deposits | $ 2,511,572 | $ 2,143,887 | 
| 
           Noninterest Bearing Demand [Member] 
         | 
        ||
| Total deposits | 545,174 | 418,810 | 
| 
           Interest Bearing Checking [Member] 
         | 
        ||
| Total deposits | 1,551,158 | 1,325,451 | 
| 
           Savings [Member] 
         | 
        ||
| Total deposits | 19,560 | 15,638 | 
| 
           Time [Member] 
         | 
        ||
| Total deposits | 69,179 | 71,368 | 
| 
           Time 1000,00 and Over [Member] 
         | 
        ||
| Total deposits | $ 326,501 | $ 312,620 | 
| X | ||||||||||
| 
             
- Definition 
          The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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