Loans (Schedule Of Impaired Loans) (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended 12 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Financing Receivable, Impaired [Line Items]    
Loans with no related allowance recorded: Recorded Investment $ 16,719 $ 18,869
Loans with no related allowance recorded: Unpaid Principal Balance 29,631 32,049
Loans with no related allowance recorded: Average Recorded Investment 20,887 31,843
Loans with no related allowance recorded: Interest Income Recognized 167 602
Loans with no related allowance recorded: Cash Basis Interest Recognized 139 572
Loans with an allowance recorded: Recorded Investment 44,946 54,430
Loans with an allowance recorded: Unpaid Principal Balance 51,521 67,857
Loans with an allowance recorded: Average Recorded Investment 51,653 57,741
Loans with an allowance recorded: Interest Income Recognized 660 2,018
Loans with an allowance recorded: Cash Basis Interest Recognized 571 1,883
Recorded Investment 61,665 73,299
Unpaid Principal Balance 81,152 99,906
Related Allowance 9,232 9,750
Average Recorded Investment 72,540 89,584
Interest Income Recognized 827 2,620
Cash Basis Interest Recognized 710 2,455
Commercial Loan Portfolio [Member]
   
Financing Receivable, Impaired [Line Items]    
Recorded Investment 52,330 62,731
Unpaid Principal Balance 70,660 88,463
Related Allowance 7,592 8,154
Average Recorded Investment 62,289 78,237
Interest Income Recognized 584 1,864
Cash Basis Interest Recognized 477 1,716
Closed End [Member]
   
Financing Receivable, Impaired [Line Items]    
Loans with no related allowance recorded: Recorded Investment 128 28
Loans with no related allowance recorded: Unpaid Principal Balance 142 28
Loans with no related allowance recorded: Average Recorded Investment 73 53
Loans with no related allowance recorded: Interest Income Recognized 1 1
Loans with no related allowance recorded: Cash Basis Interest Recognized 1 1
Loans with an allowance recorded: Recorded Investment 2,429 1,213
Loans with an allowance recorded: Unpaid Principal Balance 2,429 1,213
Loans with an allowance recorded: Average Recorded Investment 1,816 1,380
Loans with an allowance recorded: Interest Income Recognized 54 84
Loans with an allowance recorded: Cash Basis Interest Recognized 55 84
Related Allowance 698 449
Line of Credit [Member]
   
Financing Receivable, Impaired [Line Items]    
Loans with no related allowance recorded: Recorded Investment 45 45
Loans with no related allowance recorded: Unpaid Principal Balance 308 308
Loans with no related allowance recorded: Average Recorded Investment 189 550
Loans with no related allowance recorded: Interest Income Recognized     
Loans with no related allowance recorded: Cash Basis Interest Recognized     
Loans with an allowance recorded: Recorded Investment 1,172 1,177
Loans with an allowance recorded: Unpaid Principal Balance 1,172 1,177
Loans with an allowance recorded: Average Recorded Investment 1,143 2,337
Loans with an allowance recorded: Interest Income Recognized    25
Loans with an allowance recorded: Cash Basis Interest Recognized (10) 14
Related Allowance   266
Agriculture & AGRE [Member]
   
Financing Receivable, Impaired [Line Items]    
Loans with no related allowance recorded: Recorded Investment 25 65
Loans with no related allowance recorded: Unpaid Principal Balance 672 682
Loans with no related allowance recorded: Average Recorded Investment 52 62
Loans with no related allowance recorded: Interest Income Recognized    3
Loans with no related allowance recorded: Cash Basis Interest Recognized    3
Loans with an allowance recorded: Recorded Investment 60  
Loans with an allowance recorded: Unpaid Principal Balance 60  
Loans with an allowance recorded: Average Recorded Investment 20 1,039
Loans with an allowance recorded: Interest Income Recognized     
Loans with an allowance recorded: Cash Basis Interest Recognized     
Related Allowance 9  
Construction, Land & Development [Member]
   
Financing Receivable, Impaired [Line Items]    
Loans with no related allowance recorded: Recorded Investment 5,933 4,453
Loans with no related allowance recorded: Unpaid Principal Balance 16,069 14,583
Loans with no related allowance recorded: Average Recorded Investment 5,680 10,066
Loans with no related allowance recorded: Interest Income Recognized (2) 58
Loans with no related allowance recorded: Cash Basis Interest Recognized (2) 58
Loans with an allowance recorded: Recorded Investment 12,407 19,609
Loans with an allowance recorded: Unpaid Principal Balance 17,419 30,053
Loans with an allowance recorded: Average Recorded Investment 17,046 19,749
Loans with an allowance recorded: Interest Income Recognized 9 (26)
Loans with an allowance recorded: Cash Basis Interest Recognized 8 (27)
Related Allowance 2,272 2,228
Owner Occupied [Member]
   
Financing Receivable, Impaired [Line Items]    
Loans with no related allowance recorded: Recorded Investment 4,517 4,738
Loans with no related allowance recorded: Unpaid Principal Balance 5,051 5,417
Loans with no related allowance recorded: Average Recorded Investment 5,054 6,284
Loans with no related allowance recorded: Interest Income Recognized 11 44
Loans with no related allowance recorded: Cash Basis Interest Recognized 10 41
Loans with an allowance recorded: Recorded Investment 11,140 14,851
Loans with an allowance recorded: Unpaid Principal Balance 11,595 15,204
Loans with an allowance recorded: Average Recorded Investment 13,319 13,152
Loans with an allowance recorded: Interest Income Recognized 289 850
Loans with an allowance recorded: Cash Basis Interest Recognized 233 773
Related Allowance 2,445 3,678
Non-owner Occupied [Member]
   
Financing Receivable, Impaired [Line Items]    
Loans with no related allowance recorded: Recorded Investment 4,704 7,749
Loans with no related allowance recorded: Unpaid Principal Balance 5,212 8,656
Loans with no related allowance recorded: Average Recorded Investment 7,804 11,933
Loans with no related allowance recorded: Interest Income Recognized 150 442
Loans with no related allowance recorded: Cash Basis Interest Recognized 124 416
Loans with an allowance recorded: Recorded Investment 9,770 8,803
Loans with an allowance recorded: Unpaid Principal Balance 10,531 11,142
Loans with an allowance recorded: Average Recorded Investment 10,093 11,632
Loans with an allowance recorded: Interest Income Recognized 72 383
Loans with an allowance recorded: Cash Basis Interest Recognized 58 353
Related Allowance 2,168 1,533
Retail Residential Loan Portfolio [Member]
   
Financing Receivable, Impaired [Line Items]    
Recorded Investment 9,330 10,562
Unpaid Principal Balance 10,487 11,437
Related Allowance 1,640 1,591
Average Recorded Investment 10,247 11,343
Interest Income Recognized 243 756
Cash Basis Interest Recognized 233 739
Senior Lien [Member]
   
Financing Receivable, Impaired [Line Items]    
Loans with no related allowance recorded: Recorded Investment 1,148 1,108
Loans with no related allowance recorded: Unpaid Principal Balance 1,788 1,576
Loans with no related allowance recorded: Average Recorded Investment 1,465 2,198
Loans with no related allowance recorded: Interest Income Recognized 2 37
Loans with no related allowance recorded: Cash Basis Interest Recognized 2 37
Loans with an allowance recorded: Recorded Investment 7,340 8,396
Loans with an allowance recorded: Unpaid Principal Balance 7,540 8,580
Loans with an allowance recorded: Average Recorded Investment 7,729 8,062
Loans with an allowance recorded: Interest Income Recognized 226 693
Loans with an allowance recorded: Cash Basis Interest Recognized 217 677
Related Allowance 1,234 1,391
Junior Liens & Lines Of Credit [Member]
   
Financing Receivable, Impaired [Line Items]    
Loans with no related allowance recorded: Recorded Investment 219 683
Loans with no related allowance recorded: Unpaid Principal Balance 389 799
Loans with no related allowance recorded: Average Recorded Investment 570 697
Loans with no related allowance recorded: Interest Income Recognized 5 17
Loans with no related allowance recorded: Cash Basis Interest Recognized 4 16
Loans with an allowance recorded: Recorded Investment 623 375
Loans with an allowance recorded: Unpaid Principal Balance 770 482
Loans with an allowance recorded: Average Recorded Investment 483 386
Loans with an allowance recorded: Interest Income Recognized 10 9
Loans with an allowance recorded: Cash Basis Interest Recognized 10 9
Related Allowance 406 200
Consumer [Member]
   
Financing Receivable, Impaired [Line Items]    
Loans with no related allowance recorded: Recorded Investment     
Loans with no related allowance recorded: Unpaid Principal Balance     
Loans with no related allowance recorded: Average Recorded Investment     
Loans with no related allowance recorded: Interest Income Recognized     
Loans with no related allowance recorded: Cash Basis Interest Recognized     
Loans with an allowance recorded: Recorded Investment 5 6
Loans with an allowance recorded: Unpaid Principal Balance 5 6
Loans with an allowance recorded: Average Recorded Investment 4 4
Loans with an allowance recorded: Interest Income Recognized     
Loans with an allowance recorded: Cash Basis Interest Recognized     
Recorded Investment 5 6
Unpaid Principal Balance 5 6
Related Allowance   5
Average Recorded Investment 4 4
Interest Income Recognized     
Cash Basis Interest Recognized