Loans (Schedule Of Activity In The Allowance For Loan Losses) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]          
Beginning Balance $ 20,338 $ 29,089 $ 21,232 $ 31,511  
Charge-offs (3,558) (8,132) (6,193) (15,062)  
Recoveries 79 151 470 409  
Provision 1,375 3,250 2,725 7,500  
Ending Balance 18,234 24,358 18,234 24,358  
Allowance for loan losses: Loans individually evaluated for impairment 9,232   9,232   9,750
Allowance for loan losses: Loans collectively evaluated for impairment 9,002   9,002   11,482
Allowance for loan losses: Total ending allowance balance: 18,234   18,234   21,232
Loan balances: Loans individually evaluated for impairment 61,665   61,665   73,299
Loan balances: Loans collectively evaluated for impairment 506,243   506,243   509,096
Total Loans 567,908   567,908   582,395
Commercial [Member]
         
Financing Receivable, Allowance for Credit Losses [Line Items]          
Beginning Balance 1,503 1,759 1,590 1,634  
Charge-offs    (176)   (241)  
Recoveries    12   18  
Provision (25) 156 (112) 340  
Ending Balance 1,478 1,751 1,478 1,751  
Allowance for loan losses: Loans individually evaluated for impairment 698   698   715
Allowance for loan losses: Loans collectively evaluated for impairment 780   780   875
Allowance for loan losses: Total ending allowance balance: 1,478   1,478   1,590
Loan balances: Loans individually evaluated for impairment 3,774   3,774   2,463
Loan balances: Loans collectively evaluated for impairment 58,923   58,923   61,519
Total Loans 62,697   62,697   63,982
Agriculture & AGRE [Member]
         
Financing Receivable, Allowance for Credit Losses [Line Items]          
Beginning Balance 8 315 5 337  
Charge-offs (62) (654) (87) (654)  
Recoveries 26 2 43 3  
Provision 295 723 306 700  
Ending Balance 267 386 267 386  
Allowance for loan losses: Loans individually evaluated for impairment 9   9    
Allowance for loan losses: Loans collectively evaluated for impairment 258   258   5
Allowance for loan losses: Total ending allowance balance: 267   267   5
Loan balances: Loans individually evaluated for impairment 85   85   65
Loan balances: Loans collectively evaluated for impairment 38,333   38,333   39,063
Total Loans 38,418   38,418   39,128
Construction, Land & Development [Member]
         
Financing Receivable, Allowance for Credit Losses [Line Items]          
Beginning Balance 4,655 8,655 4,811 12,500  
Charge-offs (1,041) (2,333) (1,093) (6,834)  
Recoveries 2 99 286 100  
Provision 177 (111) (211) 544  
Ending Balance 3,793 6,310 3,793 6,310  
Allowance for loan losses: Loans individually evaluated for impairment 2,272   2,272   2,228
Allowance for loan losses: Loans collectively evaluated for impairment 1,521   1,521   2,583
Allowance for loan losses: Total ending allowance balance: 3,793   3,793   4,811
Loan balances: Loans individually evaluated for impairment 18,340   18,340   24,062
Loan balances: Loans collectively evaluated for impairment 17,278   17,278   17,946
Total Loans 35,618   35,618   42,008
Commercial Real Estate [Member]
         
Financing Receivable, Allowance for Credit Losses [Line Items]          
Beginning Balance 11,199 15,269 11,680 13,721  
Charge-offs (1,779) (4,296) (3,929) (6,014)  
Recoveries 44 14 131 231  
Provision 301 2,022 1,883 5,071  
Ending Balance 9,765 13,009 9,765 13,009  
Allowance for loan losses: Loans individually evaluated for impairment 4,613   4,613   5,211
Allowance for loan losses: Loans collectively evaluated for impairment 5,152   5,152   6,469
Allowance for loan losses: Total ending allowance balance: 9,765   9,765   11,680
Loan balances: Loans individually evaluated for impairment 30,131   30,131   36,141
Loan balances: Loans collectively evaluated for impairment 268,256   268,256   251,927
Total Loans 298,387   298,387   288,068
1-4 Family Residential [Member]
         
Financing Receivable, Allowance for Credit Losses [Line Items]          
Beginning Balance 2,929 3,055 3,090 3,273  
Charge-offs (675) (667) (1,078) (1,293)  
Recoveries 4 8 7 36  
Provision 625 471 864 851  
Ending Balance 2,883 2,867 2,883 2,867  
Allowance for loan losses: Loans individually evaluated for impairment 1,640   1,640   1,591
Allowance for loan losses: Loans collectively evaluated for impairment 1,243   1,243   1,499
Allowance for loan losses: Total ending allowance balance: 2,883   2,883   3,090
Loan balances: Loans individually evaluated for impairment 9,330   9,330   10,563
Loan balances: Loans collectively evaluated for impairment 120,922   120,922   136,204
Total Loans 130,252   130,252   146,767
Consumer [Member]
         
Financing Receivable, Allowance for Credit Losses [Line Items]          
Beginning Balance 44 36 56 46  
Charge-offs (1) (6) (6) (26)  
Recoveries 3 16 3 21  
Provision 2 (11) (5) (6)  
Ending Balance 48 35 48 35  
Allowance for loan losses: Loans individually evaluated for impairment           5
Allowance for loan losses: Loans collectively evaluated for impairment 48   48   51
Allowance for loan losses: Total ending allowance balance: 48   48   56
Loan balances: Loans individually evaluated for impairment 5   5   5
Loan balances: Loans collectively evaluated for impairment 2,531   2,531   2,437
Total Loans $ 2,536   $ 2,536   $ 2,442