| **Loans and Allowance for Loan Losses (Past Due Status) (Details) (USD $)In Thousands, unless otherwise specified** | Dec. 31, 2012 | Dec. 31, 2011 |
|---------------------------------------------------------------------------------------------------------------------|---------------|---------------|
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Past due, 30 - 59 days                                                                                              | $ 11,443      | $ 17,561      |
| Past due, 60 - 89 days                                                                                              | 5,795         | 2,700         |
| Past due, more than 90 days                                                                                         | 24,060        | 11,995        |
| Nonaccrual                                                                                                          | 79,242        | 98,444        |
| Total past due and nonaccrual                                                                                       | 120,540       | 130,700       |
| Current and accruing                                                                                                | 1,056,495     | 1,086,835     |
| Total Loans                                                                                                         | 1,177,035     | 1,217,535     |
| Commercial and agricultural [Member]                                                                                |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Total Loans                                                                                                         | 79,704        | 95,089        |
| Real estate - construction [Member]                                                                                 |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Total Loans                                                                                                         | 58,414        | 92,806        |
| Real estate - mortgage, 1-4 family residential [Member]                                                             |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Total Loans                                                                                                         | 553,538       | 453,725       |
| Real estate - mortgage, commercial [Member]                                                                         |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Total Loans                                                                                                         | 441,836       | 531,383       |
| Consumer [Member]                                                                                                   |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Total Loans                                                                                                         | 43,543        | 44,532        |
| PC [Member]                                                                                                         |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Past due, 30 - 59 days                                                                                              | 7,355         | 6,218         |
| Past due, 60 - 89 days                                                                                              | 999           | 1,636         |
| Past due, more than 90 days                                                                                         | 227           | 3,000         |
| Nonaccrual                                                                                                          | 79,242        | 98,444        |
| Total past due and nonaccrual                                                                                       | 87,823        | 109,298       |
| Current and accruing                                                                                                | 860,820       | 776,014       |
| Total Loans                                                                                                         | 948,643       | 885,312       |
| PC [Member] | Commercial and agricultural [Member]                                                                  |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Past due, 30 - 59 days                                                                                              | 515           | 181           |
| Past due, 60 - 89 days                                                                                              |          | 124           |
| Past due, more than 90 days                                                                                         | 50            | 305           |
| Nonaccrual                                                                                                          | 2,746         | 4,636         |
| Total past due and nonaccrual                                                                                       | 3,311         | 5,246         |
| Current and accruing                                                                                                | 61,727        | 59,826        |
| Total Loans                                                                                                         | 65,038        | 65,072        |
| PC [Member] | Real estate - construction [Member]                                                                   |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Past due, 30 - 59 days                                                                                              | 26            | 1,410         |
| Past due, 60 - 89 days                                                                                              | 119           | 75            |
| Past due, more than 90 days                                                                                         |          | 1,400         |
| Nonaccrual                                                                                                          | 14,297        | 30,844        |
| Total past due and nonaccrual                                                                                       | 14,442        | 33,729        |
| Current and accruing                                                                                                | 41,290        | 51,198        |
| Total Loans                                                                                                         | 55,732        | 84,927        |
| PC [Member] | Real estate - mortgage, 1-4 family residential [Member]                                               |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Past due, 30 - 59 days                                                                                              | 6,173         | 3,066         |
| Past due, 60 - 89 days                                                                                              | 880           | 885           |
| Past due, more than 90 days                                                                                         |          | 292           |
| Nonaccrual                                                                                                          | 18,372        | 26,048        |
| Total past due and nonaccrual                                                                                       | 25,425        | 30,291        |
| Current and accruing                                                                                                | 488,898       | 373,048       |
| Total Loans                                                                                                         | 514,323       | 403,339       |
| PC [Member] | Real estate - mortgage, commercial [Member]                                                           |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Past due, 30 - 59 days                                                                                              | 617           | 1,077         |
| Past due, 60 - 89 days                                                                                              |          | 274           |
| Past due, more than 90 days                                                                                         | 177           | 1,003         |
| Nonaccrual                                                                                                          | 43,621        | 36,666        |
| Total past due and nonaccrual                                                                                       | 44,415        | 39,020        |
| Current and accruing                                                                                                | 226,948       | 249,265       |
| Total Loans                                                                                                         | 271,363       | 288,285       |
| PC [Member] | Consumer [Member]                                                                                     |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Past due, 30 - 59 days                                                                                              | 24            | 484           |
| Past due, 60 - 89 days                                                                                              |          | 278           |
| Nonaccrual                                                                                                          | 206           | 250           |
| Total past due and nonaccrual                                                                                       | 230           | 1,012         |
| Current and accruing                                                                                                | 41,957        | 42,677        |
| Total Loans                                                                                                         | 42,187        | 43,689        |
| PI [Member]                                                                                                         |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Past due, 30 - 59 days                                                                                              | 4,088         | 11,343        |
| Past due, 60 - 89 days                                                                                              | 4,796         | 1,064         |
| Past due, more than 90 days                                                                                         | 23,833        | 8,995         |
| Nonaccrual                                                                                                          | 79,242        | 98,444        |
| Total past due and nonaccrual                                                                                       | 32,717        | 21,402        |
| Current and accruing                                                                                                | 195,675       | 310,821       |
| Total Loans                                                                                                         | 228,392       | 332,223       |
| PI [Member] | Commercial and agricultural [Member]                                                                  |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Past due, 30 - 59 days                                                                                              | 100           | 443           |
| Past due, 60 - 89 days                                                                                              | 1             | 383           |
| Past due, more than 90 days                                                                                         | 1,103         | 579           |
| Nonaccrual                                                                                                          | 2,746         | 4,636         |
| Total past due and nonaccrual                                                                                       | 1,204         | 1,405         |
| Current and accruing                                                                                                | 13,462        | 28,612        |
| Total Loans                                                                                                         | 14,666        | 30,017        |
| PI [Member] | Real estate - construction [Member]                                                                   |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Past due, 30 - 59 days                                                                                              | 117           | 360           |
| Past due, more than 90 days                                                                                         | 655           | 302           |
| Nonaccrual                                                                                                          | 14,297        | 30,844        |
| Total past due and nonaccrual                                                                                       | 772           | 662           |
| Current and accruing                                                                                                | 1,910         | 7,217         |
| Total Loans                                                                                                         | 2,682         | 7,879         |
| PI [Member] | Real estate - mortgage, 1-4 family residential [Member]                                               |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Past due, 30 - 59 days                                                                                              | 1,308         | 1,585         |
| Past due, 60 - 89 days                                                                                              | 495           | 132           |
| Past due, more than 90 days                                                                                         | 4,678         | 1,801         |
| Nonaccrual                                                                                                          | 18,372        | 26,048        |
| Total past due and nonaccrual                                                                                       | 6,481         | 3,518         |
| Current and accruing                                                                                                | 32,734        | 46,868        |
| Total Loans                                                                                                         | 39,215        | 50,386        |
| PI [Member] | Real estate - mortgage, commercial [Member]                                                           |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Past due, 30 - 59 days                                                                                              | 2,559         | 8,946         |
| Past due, 60 - 89 days                                                                                              | 4,300         | 535           |
| Past due, more than 90 days                                                                                         | 17,384        | 6,313         |
| Nonaccrual                                                                                                          | 43,621        | 36,666        |
| Total past due and nonaccrual                                                                                       | 24,243        | 15,794        |
| Current and accruing                                                                                                | 146,230       | 227,304       |
| Total Loans                                                                                                         | 170,473       | 243,098       |
| PI [Member] | Consumer [Member]                                                                                     |          |          |
| **Financing Receivable, Recorded Investment, Past Due [Line Items]**                                                |          |          |
| Past due, 30 - 59 days                                                                                              | 4             | 9             |
| Past due, 60 - 89 days                                                                                              |          | 14            |
| Past due, more than 90 days                                                                                         | 13            |          |
| Nonaccrual                                                                                                          | 206           | 250           |
| Total past due and nonaccrual                                                                                       | 17            | 23            |
| Current and accruing                                                                                                | 1,339         | 820           |
| Total Loans                                                                                                         | $ 1,356       | $ 843         |

| X                                                                                                                                                                                                                                                                                                                              |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Financing Receivable, Recorded Investment, Past Due and Nonaccrual Status
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Financing receivables that are less than 60 days past due but more than 29 days past due.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953401-111524
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Financing receivables that are less than 90 days past due but more than 59 days past due.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Recorded investment in financing receivables that are 90 days or more past due and still accruing.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5111-111524
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Financing receivables that are current.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
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