v2.4.0.6
Business Combinations (Narrative) (Details) (USD $)
 7 Months Ended 12 Months Ended 0 Months Ended 0 Months Ended 0 Months Ended 0 Months Ended
Dec. 31, 2011
location
Dec. 31, 2011
location
Dec. 31, 2011
location
Dec. 31, 2010
Dec. 31, 2009
Aug. 05, 2011
Bank of Whitman [Member]
location
Dec. 31, 2011
Bank of Whitman [Member]
location
May 27, 2011
First Heritage Bank [Member]
location
years
Dec. 31, 2011
First Heritage Bank [Member]
May 20, 2011
First Heritage Bank [Member]
Maximum [Member]
May 20, 2011
Summit Bank [Member]
years
Dec. 31, 2011
Summit Bank [Member]
May 20, 2011
Summit Bank [Member]
Maximum [Member]
May 27, 2011
Scenario, Previously Reported [Member]
First Heritage Bank [Member]
May 20, 2011
Scenario, Previously Reported [Member]
Summit Bank [Member]
Business Acquisition [Line Items]                              
Acquisition date           August 5, 2011   May 27, 2011     May 20, 2011        
Number Of Branch Locations To Be Acquired           9   5              
Bargain purchase gain, net of tax     $ 1,830,000 $ 9,818,000 $ 0 $ 1,830,000                  
Goodwill               4,023,000     1,892,000        
Core deposit intangible           3,943,000   1,337,000     509,000        
Business Acquisition, Purchase Price Allocation, Goodwill, Expected Tax Deductible Amount               4,023,000     1,892,000        
Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets, Expected Tax Deductible Amount           3,943,000   1,337,000     509,000        
Number Of Branch Locations Excluded From Operating Results             11                
Percentage of loss shared by FDIC                 80.00%     80.00%      
FDIC Percentage Of Loss Recoveries                 80.00%     80.00%      
Term of loss sharing agreements for commercial loans               5     5        
Term of Loss sharing agreements for Single family residential mortgage loans               10     10        
Commercial Loans Period Of Loss Recovery Provisions               8     8        
Single Family Residential Mortgage Loans Period of Loss Recovery Provisions               10     10        
FDIC Indemnification Asset, Accrued Interest On Loans, Period of Accrual                   90 days     90 days    
Number Of Branch Locations 102 102 102                        
Acquired loans           200,041,000   81,488,000     69,783,000     81,900,000 71,400,000
Other real estate owned covered by loss sharing               8,225,000     2,162,000     8,300,000 2,700,000
FDIC indemnification asset               38,531,000     30,203,000     38,100,000 27,200,000
Other assets           2,447,000   3,657,000     1,813,000     1,700,000 786,000
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Acquired Loans 369,000 1,700,000                          
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Loans Covered By Loss Sharing 61,000 509,000                          
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, FDIC Indemnification Asset 427,000 3,000,000                          
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Assets $ 1,900,000 $ 1,000,000