Annual report pursuant to Section 13 and 15(d)

EMPLOYEE AND DIRECTOR BENEFITS - Additional Information (Detail)

v2.4.0.6
EMPLOYEE AND DIRECTOR BENEFITS - Additional Information (Detail) (USD $)
 0 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Nov. 02, 2007
Sep. 21, 2006
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
May 02, 2008
Jun. 30, 2009
Trust Securities [Member]
Sep. 30, 2008
Preferred Securities [Member]
Dec. 31, 2012
Restricted Stock [Member]
Dec. 31, 2012
Plan 2005 [Member]
Dec. 31, 2012
Plan 2006 [Member]
Dec. 31, 2012
Plan 2009 [Member]
Nov. 02, 2007
Non Plan Stock Option [Member]
Sep. 21, 2006
Non Plan Stock Option [Member]
Feb. 28, 2010
Restricted Stock Awards [Member]
Dec. 31, 2012
Additional Contribution [Member]
Dec. 31, 2011
Additional Contribution [Member]
Share based compensation     $ 1,049,000 $ 975,000 $ 713,000                          
Shares available for grant     257,000               525,000 1,025,000 425,000 25,000 30,000      
Share Price                           $ 20 $ 15      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 6.59 $ 7.82 $ 7.91                          
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized     1,795,000             360,000                
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition     2 years 1 month 6 days             1 year 8 months 12 days                
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period                   20,500                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value     404,000                              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 25,000 30,000                                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number     816,500 1,073,800 881,000 863,500                   30,000    
Warrants and Rights Outstanding       20,000,000     60,000,000                      
Class of Warrant or Right, Exercise Price of Warrants or Rights             $ 10 $ 25 $ 25                  
Class of Warrant or Right, Number of Securities Called by Warrants or Rights               15,000 75,000                  
Postemployment Benefits, Period Expense     1,167,000 946,000 377,000                       576,000 432,000
Additional Contribution     4.00% 3.00%                            
Employee Stock Ownership Plan (ESOP), Compensation Expense     $ 1,049,000 $ 975,000 $ 713,000                          
Share Based Compensation Arrangement By Share Based Payment Award Purchase Price Of Common Stock $ 2 $ 15                                
Percentage Of Non Qualified Vested Shares 100.00%                                  
Expiration Period Of Non Qualified Stock Options 10 years                                  
Class of Warrant or Right, Outstanding     70,500 75,000