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Credit Quality and Nonperforming Assets (Past Due and Nonaccrual Loans) (Details) - USD ($) $ in Thousands | Jun. 30, 2016 | Dec. 31, 2015
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Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | $ 1,568 |  | $ 6,614 |
Current |  | 1,153,694 |  | 1,126,242 |
Total Financing Receivables |  | 1,155,262 |  | 1,132,856 |
Non-Accrual Loans | [1] | 5,944 |  | 9,634 |
Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 1,247 |  | 6,096 |
Current |  | 780,913 |  | 772,012 |
Total Financing Receivables |  | 782,160 |  | 778,108 |
Non-Accrual Loans | [1] | 4,887 |  | 8,352 |
1-4 family residential construction [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 1,157 |
Current |  | 16,939 |  | 13,784 |
Total Financing Receivables |  | 16,939 |  | 14,941 |
Non-Accrual Loans | [1] | 0 |  | 0 |
Other construction/land [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 210 |
Current |  | 38,390 |  | 37,149 |
Total Financing Receivables |  | 38,390 |  | 37,359 |
Non-Accrual Loans | [1] | 257 |  | 457 |
1-4 Family - closed-end [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 75 |  | 2,548 |
Current |  | 135,383 |  | 134,808 |
Total Financing Receivables |  | 135,458 |  | 137,356 |
Non-Accrual Loans | [1] | 446 |  | 2,298 |
Equity lines [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 573 |  | 930 |
Current |  | 40,251 |  | 43,303 |
Total Financing Receivables |  | 40,824 |  | 44,233 |
Non-Accrual Loans | [1] | 1,630 |  | 1,770 |
Multi Family Residencial [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 630 |
Current |  | 31,434 |  | 26,592 |
Total Financing Receivables |  | 31,434 |  | 27,222 |
Non-Accrual Loans | [1] | 0 |  | 630 |
Commercial Real Estate Owner Occupied [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 556 |  | 621 |
Current |  | 211,643 |  | 218,087 |
Total Financing Receivables |  | 212,199 |  | 218,708 |
Non-Accrual Loans | [1] | 2,276 |  | 2,325 |
Commercial Real Estate Non Owner Occupied [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 0 |
Current |  | 174,776 |  | 165,107 |
Total Financing Receivables |  | 174,776 |  | 165,107 |
Non-Accrual Loans | [1] | 235 |  | 262 |
Farmland [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 43 |  | 0 |
Current |  | 132,097 |  | 133,182 |
Total Financing Receivables |  | 132,140 |  | 133,182 |
Non-Accrual Loans | [1] | 43 |  | 610 |
Agricultural [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 64 |  | 0 |
Current |  | 49,959 |  | 46,237 |
Total Financing Receivables |  | 50,023 |  | 46,237 |
Non-Accrual Loans | [1] | 65 |  | 0 |
Commercial And Industrial Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 145 |  | 366 |
Current |  | 111,601 |  | 112,841 |
Total Financing Receivables |  | 111,746 |  | 113,207 |
Non-Accrual Loans | [1] | 529 |  | 710 |
Mortgage Warehouse [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 0 |
Current |  | 197,715 |  | 180,355 |
Total Financing Receivables |  | 197,715 |  | 180,355 |
Non-Accrual Loans | [1] | 0 |  | 0 |
Consumer Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 112 |  | 152 |
Current |  | 13,506 |  | 14,797 |
Total Financing Receivables |  | 13,618 |  | 14,949 |
Non-Accrual Loans | [1] | 463 |  | 572 |
30-59 Days Past Due [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 702 |  | 2,351 |
30-59 Days Past Due [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 571 |  | 2,126 |
30-59 Days Past Due [Member] | 1-4 family residential construction [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 612 |
30-59 Days Past Due [Member] | Other construction/land [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 18 |
30-59 Days Past Due [Member] | 1-4 Family - closed-end [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 75 |  | 1,065 |
30-59 Days Past Due [Member] | Equity lines [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 298 |  | 199 |
30-59 Days Past Due [Member] | Multi Family Residencial [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 0 |
30-59 Days Past Due [Member] | Commercial Real Estate Owner Occupied [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 198 |  | 232 |
30-59 Days Past Due [Member] | Commercial Real Estate Non Owner Occupied [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 0 |
30-59 Days Past Due [Member] | Farmland [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 0 |
30-59 Days Past Due [Member] | Agricultural [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 0 |
30-59 Days Past Due [Member] | Commercial And Industrial Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 32 |  | 127 |
30-59 Days Past Due [Member] | Mortgage Warehouse [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 0 |
30-59 Days Past Due [Member] | Consumer Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 99 |  | 98 |
60-89 Days Past Due [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 135 |  | 2,759 |
60-89 Days Past Due [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 121 |  | 2,597 |
60-89 Days Past Due [Member] | 1-4 family residential construction [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 545 |
60-89 Days Past Due [Member] | Other construction/land [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 129 |
60-89 Days Past Due [Member] | 1-4 Family - closed-end [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 917 |
60-89 Days Past Due [Member] | Equity lines [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 78 |  | 247 |
60-89 Days Past Due [Member] | Multi Family Residencial [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 630 |
60-89 Days Past Due [Member] | Commercial Real Estate Owner Occupied [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 129 |
60-89 Days Past Due [Member] | Commercial Real Estate Non Owner Occupied [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 0 |
60-89 Days Past Due [Member] | Farmland [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 43 |  | 0 |
60-89 Days Past Due [Member] | Agricultural [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 0 |
60-89 Days Past Due [Member] | Commercial And Industrial Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 1 |  | 153 |
60-89 Days Past Due [Member] | Mortgage Warehouse [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 |  | 0 |
60-89 Days Past Due [Member] | Consumer Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 13 |  | 9 |
90 Days Or More Past Due [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 731 | [2] | 1,504 | [3]
90 Days Or More Past Due [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 555 | [2] | 1,373 | [3]
90 Days Or More Past Due [Member] | 1-4 family residential construction [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 | [2] | 0 | [3]
90 Days Or More Past Due [Member] | Other construction/land [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 | [2] | 63 | [3]
90 Days Or More Past Due [Member] | 1-4 Family - closed-end [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 | [2] | 566 | [3]
90 Days Or More Past Due [Member] | Equity lines [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 197 | [2] | 484 | [3]
90 Days Or More Past Due [Member] | Multi Family Residencial [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 | [2] | 0 | [3]
90 Days Or More Past Due [Member] | Commercial Real Estate Owner Occupied [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 358 | [2] | 260 | [3]
90 Days Or More Past Due [Member] | Commercial Real Estate Non Owner Occupied [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 | [2] | 0 | [3]
90 Days Or More Past Due [Member] | Farmland [Member] | Real Estate Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 | [2] | 0 | [3]
90 Days Or More Past Due [Member] | Agricultural [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 64 | [2] | 0 | [3]
90 Days Or More Past Due [Member] | Commercial And Industrial Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 112 | [2] | 86 | [3]
90 Days Or More Past Due [Member] | Mortgage Warehouse [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | 0 | [2] | 0 | [3]
90 Days Or More Past Due [Member] | Consumer Loan [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
Total Past Due |  | $ 0 | [2] | $ 45 | [3]
[1] | Included in total financing receivables
[2] | As of June 30, 2016 there were no loans over 90 days past due and still acrruing.
[3] | As of December 31, 2015 there were no loans over 90 days past due and still accruing.

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