|**Loans and Allowance for Loan Losses (Past Due Status) (Details) - USD ($) $ in Thousands**                                                   | Jun. 30, 2015                                          | Dec. 31, 2014                                         
|---------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------ | ------------------------------------------------------
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Nonaccrual                                                                                                                                     | $ 19,508                                               | $ 25,288                                              
|Total past due and nonaccrual                                                                                                                  | 36,811                                                 | 51,628                                                
|Current and accruing                                                                                                                           | 1,409,042                                              | 1,306,160                                             
|Loans held for investment                                                                                                                      | 1,445,853                                              | 1,357,788                                             
|Financing Receivables, 30 to 59 Days Past Due [Member]                                                                                         |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 2,680                                                  | 4,536                                                 
|Financing Receivables, 60 to 89 Days Past Due [Member]                                                                                         |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 823                                                    | 647                                                   
|Financing Receivables, Equal to Greater than 90 Days Past Due [Member]                                                                         |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 13,800                                                 | 21,157                                                
|Commercial and agricultural [Member]                                                                                                           |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Loans held for investment                                                                                                                      | 129,040                                                | 113,413                                               
|Real estate - construction [Member]                                                                                                            |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Loans held for investment                                                                                                                      | 71,859                                                 | 78,327                                                
|Real estate - mortgage, 1-4 family residential [Member]                                                                                        |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Loans held for investment                                                                                                                      | 684,500                                                | 667,602                                               
|Real estate - mortgage, commercial [Member]                                                                                                    |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Loans held for investment                                                                                                                      | 467,882                                                | 426,328                                               
|Consumer [Member]                                                                                                                              |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Loans held for investment                                                                                                                      | 92,572                                                 | 72,118                                                
|PC [Member]                                                                                                                                    |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Nonaccrual                                                                                                                                     | 19,508                                                 | 25,288                                                
|Total past due and nonaccrual                                                                                                                  | 22,666                                                 | 29,474                                                
|Current and accruing                                                                                                                           | 1,321,072                                              | 1,205,472                                             
|Loans held for investment                                                                                                                      | 1,343,738                                              | 1,234,946                                             
|PC [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]                                                                           |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 2,260                                                  | 3,668                                                 
|PC [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]                                                                           |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 823                                                    | 513                                                   
|PC [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]                                                           |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 75                                                     | 5                                                     
|PC [Member] | Commercial and agricultural [Member]                                                                                             |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Nonaccrual                                                                                                                                     | 469                                                    | 608                                                   
|Total past due and nonaccrual                                                                                                                  | 472                                                    | 608                                                   
|Current and accruing                                                                                                                           | 122,254                                                | 105,269                                               
|Loans held for investment                                                                                                                      | 122,726                                                | 105,877                                               
|PC [Member] | Commercial and agricultural [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]                                    |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 3                                                      | 0                                                     
|PC [Member] | Commercial and agricultural [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]                                    |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 0                                                      | 0                                                     
|PC [Member] | Commercial and agricultural [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]                    |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 0                                                      | 0                                                     
|PC [Member] | Real estate - construction [Member]                                                                                              |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Nonaccrual                                                                                                                                     | 799                                                    | 2,307                                                 
|Total past due and nonaccrual                                                                                                                  | 851                                                    | 2,407                                                 
|Current and accruing                                                                                                                           | 62,881                                                 | 66,723                                                
|Loans held for investment                                                                                                                      | 63,732                                                 | 69,130                                                
|PC [Member] | Real estate - construction [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]                                     |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 52                                                     | 100                                                   
|PC [Member] | Real estate - construction [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]                                     |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 0                                                      | 0                                                     
|PC [Member] | Real estate - construction [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]                     |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 0                                                      | 0                                                     
|PC [Member] | Real estate - mortgage, 1-4 family residential [Member]                                                                          |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Nonaccrual                                                                                                                                     | 9,383                                                  | 8,637                                                 
|Total past due and nonaccrual                                                                                                                  | 10,858                                                 | 11,503                                                
|Current and accruing                                                                                                                           | 657,817                                                | 638,364                                               
|Loans held for investment                                                                                                                      | 668,675                                                | 649,867                                               
|PC [Member] | Real estate - mortgage, 1-4 family residential [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]                 |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 807                                                    | 2,719                                                 
|PC [Member] | Real estate - mortgage, 1-4 family residential [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]                 |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 665                                                    | 147                                                   
|PC [Member] | Real estate - mortgage, 1-4 family residential [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 3                                                      | 0                                                     
|PC [Member] | Real estate - mortgage, commercial [Member]                                                                                      |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Nonaccrual                                                                                                                                     | 8,304                                                  | 13,381                                                
|Total past due and nonaccrual                                                                                                                  | 8,773                                                  | 13,627                                                
|Current and accruing                                                                                                                           | 388,193                                                | 325,356                                               
|Loans held for investment                                                                                                                      | 396,966                                                | 338,983                                               
|PC [Member] | Real estate - mortgage, commercial [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]                             |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 413                                                    | 105                                                   
|PC [Member] | Real estate - mortgage, commercial [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]                             |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 0                                                      | 141                                                   
|PC [Member] | Real estate - mortgage, commercial [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]             |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 56                                                     | 0                                                     
|PC [Member] | Consumer [Member]                                                                                                                |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Nonaccrual                                                                                                                                     | 553                                                    | 355                                                   
|Total past due and nonaccrual                                                                                                                  | 1,712                                                  | 1,329                                                 
|Current and accruing                                                                                                                           | 89,927                                                 | 69,760                                                
|Loans held for investment                                                                                                                      | 91,639                                                 | 71,089                                                
|PC [Member] | Consumer [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]                                                       |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 985                                                    | 744                                                   
|PC [Member] | Consumer [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]                                                       |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 158                                                    | 225                                                   
|PC [Member] | Consumer [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]                                       |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 16                                                     | 5                                                     
|PI [Member]                                                                                                                                    |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Nonaccrual                                                                                                                                     | 0                                                      | 0                                                     
|Total past due and nonaccrual                                                                                                                  | 14,145                                                 | 22,154                                                
|Current and accruing                                                                                                                           | 87,970                                                 | 100,688                                               
|Loans held for investment                                                                                                                      | 102,115                                                | 122,842                                               
|PI [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]                                                                           |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 420                                                    | 868                                                   
|PI [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]                                                                           |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 0                                                      | 134                                                   
|PI [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]                                                           |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 13,725                                                 | 21,152                                                
|PI [Member] | Commercial and agricultural [Member]                                                                                             |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Nonaccrual                                                                                                                                     | 0                                                      | 0                                                     
|Total past due and nonaccrual                                                                                                                  | 1,881                                                  | 2,232                                                 
|Current and accruing                                                                                                                           | 4,433                                                  | 5,303                                                 
|Loans held for investment                                                                                                                      | 6,314                                                  | 7,535                                                 
|PI [Member] | Commercial and agricultural [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]                                    |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 14                                                     | 0                                                     
|PI [Member] | Commercial and agricultural [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]                                    |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 0                                                      | 0                                                     
|PI [Member] | Commercial and agricultural [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]                    |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 1,867                                                  | 2,232                                                 
|PI [Member] | Real estate - construction [Member]                                                                                              |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Nonaccrual                                                                                                                                     | 0                                                      | 0                                                     
|Total past due and nonaccrual                                                                                                                  | 1,485                                                  | 3,737                                                 
|Current and accruing                                                                                                                           | 6,642                                                  | 5,460                                                 
|Loans held for investment                                                                                                                      | 8,127                                                  | 9,197                                                 
|PI [Member] | Real estate - construction [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]                                     |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 0                                                      | 0                                                     
|PI [Member] | Real estate - construction [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]                                     |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 0                                                      | 0                                                     
|PI [Member] | Real estate - construction [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]                     |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 1,485                                                  | 3,737                                                 
|PI [Member] | Real estate - mortgage, 1-4 family residential [Member]                                                                          |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Nonaccrual                                                                                                                                     | 0                                                      | 0                                                     
|Total past due and nonaccrual                                                                                                                  | 1,817                                                  | 2,803                                                 
|Current and accruing                                                                                                                           | 14,008                                                 | 14,934                                                
|Loans held for investment                                                                                                                      | 15,825                                                 | 17,737                                                
|PI [Member] | Real estate - mortgage, 1-4 family residential [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]                 |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 13                                                     | 579                                                   
|PI [Member] | Real estate - mortgage, 1-4 family residential [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]                 |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 0                                                      | 15                                                    
|PI [Member] | Real estate - mortgage, 1-4 family residential [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 1,804                                                  | 2,209                                                 
|PI [Member] | Real estate - mortgage, commercial [Member]                                                                                      |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Nonaccrual                                                                                                                                     | 0                                                      | 0                                                     
|Total past due and nonaccrual                                                                                                                  | 8,948                                                  | 13,370                                                
|Current and accruing                                                                                                                           | 61,968                                                 | 73,975                                                
|Loans held for investment                                                                                                                      | 70,916                                                 | 87,345                                                
|PI [Member] | Real estate - mortgage, commercial [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]                             |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 387                                                    | 287                                                   
|PI [Member] | Real estate - mortgage, commercial [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]                             |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 0                                                      | 119                                                   
|PI [Member] | Real estate - mortgage, commercial [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]             |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 8,561                                                  | 12,964                                                
|PI [Member] | Consumer [Member]                                                                                                                |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Nonaccrual                                                                                                                                     | 0                                                      | 0                                                     
|Total past due and nonaccrual                                                                                                                  | 14                                                     | 12                                                    
|Current and accruing                                                                                                                           | 919                                                    | 1,016                                                 
|Loans held for investment                                                                                                                      | 933                                                    | 1,028                                                 
|PI [Member] | Consumer [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]                                                       |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 6                                                      | 2                                                     
|PI [Member] | Consumer [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]                                                       |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | 0                                                      | 0                                                     
|PI [Member] | Consumer [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]                                       |                                                        |                                                       
|**Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                                           |                                                        |                                                       
|Investment past due                                                                                                                            | $ 8                                                    | $ 10                                                  
|                                                                                                                                              
|[1]
Derived from audited consolidated financial statements                                                                                     | [1]                                                    | Derived from audited consolidated financial statements
|[1]                                                                                                                                            | Derived from audited consolidated financial statements

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