| **Fair Values of Assets and Liabilities (Fair Value of Financial Instruments) (Details) - USD ($) $ in Thousands** | Sep. 30, 2015 | Dec. 31, 2014 |
|--------------------------------------------------------------------------------------------------------------------|---------------|---------------|
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Available-for-sale securities                                                                                      | $ 375,929     | $ 350,040     | [1] |
| Held-to-maturity                                                                                                   | 151,935       | 140,875       | [1] |
| Level 1 [Member]                                                                                                   |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Cash and cash equivalents                                                                                          | 28,006        | 95,882        |  |
| Available-for-sale securities                                                                                      | 0             | 0             |  |
| Held-to-maturity                                                                                                   | 0             | 0             |  |
| Loans held for sale                                                                                                | 0             | 0             |  |
| Loans held for investment, net                                                                                     | 0             | 0             |  |
| Accrued interest receivable                                                                                        | 1             | 0             |  |
| Deposits                                                                                                           | 0             | 0             |  |
| Retail repurchase agreements                                                                                       | 0             | 0             |  |
| Federal Home Loan Bank advances                                                                                    | 0             | 0             |  |
| Long-term notes payable                                                                                            | 0             | 0             |  |
| Junior subordinated debentures                                                                                     | 0             | 0             |  |
| Accrued interest payable                                                                                           | 0             | 0             |  |
| Level 1 [Member] | Interest Rate Swap [Member]                                                                     |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Derivative assets                                                                                                  | 0             |          |  |
| Level 1 [Member] | Interest Rate Locks and Forward Loan Sales Commitments [Member]                                 |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Derivative assets                                                                                                  |          | 0             |  |
| Level 2 [Member]                                                                                                   |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Cash and cash equivalents                                                                                          | 0             | 0             |  |
| Available-for-sale securities                                                                                      | 375,929       | 350,040       |  |
| Held-to-maturity                                                                                                   | 151,935       | 140,875       |  |
| Loans held for sale                                                                                                | 4,089         | 2,796         |  |
| Loans held for investment, net                                                                                     | 0             | 0             |  |
| Accrued interest receivable                                                                                        | 1,509         | 1,262         |  |
| Deposits                                                                                                           | 1,898,024     | 1,793,205     |  |
| Retail repurchase agreements                                                                                       | 16,753        | 9,076         |  |
| Federal Home Loan Bank advances                                                                                    | 92,737        | 71,462        |  |
| Long-term notes payable                                                                                            | 0             | 0             |  |
| Junior subordinated debentures                                                                                     | 0             | 0             |  |
| Accrued interest payable                                                                                           | 350           | 321           |  |
| Level 2 [Member] | Interest Rate Swap [Member]                                                                     |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Derivative assets                                                                                                  | (1,359)       |          |  |
| Level 2 [Member] | Interest Rate Locks and Forward Loan Sales Commitments [Member]                                 |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Derivative assets                                                                                                  |          | (525)         |  |
| Level 3 [Member]                                                                                                   |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Cash and cash equivalents                                                                                          | 0             | 0             |  |
| Available-for-sale securities                                                                                      | 0             | 0             |  |
| Held-to-maturity                                                                                                   | 0             | 0             |  |
| Loans held for sale                                                                                                | 0             | 0             |  |
| Loans held for investment, net                                                                                     | 1,501,039     | 1,328,895     |  |
| Accrued interest receivable                                                                                        | 4,016         | 3,623         |  |
| Deposits                                                                                                           | 0             | 0             |  |
| Retail repurchase agreements                                                                                       | 0             | 0             |  |
| Federal Home Loan Bank advances                                                                                    | 0             | 0             |  |
| Long-term notes payable                                                                                            | 5,396         | 5,338         |  |
| Junior subordinated debentures                                                                                     | 32,164        | 32,341        |  |
| Accrued interest payable                                                                                           | 16            | 3,303         |  |
| Level 3 [Member] | Interest Rate Swap [Member]                                                                     |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Derivative assets                                                                                                  | 0             |          |  |
| Level 3 [Member] | Interest Rate Locks and Forward Loan Sales Commitments [Member]                                 |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Derivative assets                                                                                                  |          | 0             |  |
| Carrying Value [Member]                                                                                            |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Cash and cash equivalents                                                                                          | 28,006        | 95,882        |  |
| Available-for-sale securities                                                                                      | 375,929       | 350,040       |  |
| Held-to-maturity                                                                                                   | 152,670       | 142,461       |  |
| Loans held for sale                                                                                                | 4,089         | 2,796         |  |
| Loans held for investment, net                                                                                     | 1,505,267     | 1,337,443     |  |
| Accrued interest receivable                                                                                        | 5,526         | 4,885         |  |
| Deposits                                                                                                           | 1,896,879     | 1,794,420     |  |
| Retail repurchase agreements                                                                                       | 16,753        | 9,076         |  |
| Federal Home Loan Bank advances                                                                                    | 90,244        | 68,234        |  |
| Long-term notes payable                                                                                            | 5,396         | 5,338         |  |
| Junior subordinated debentures                                                                                     | 56,702        | 56,702        |  |
| Accrued interest payable                                                                                           | 366           | 3,624         |  |
| Carrying Value [Member] | Interest Rate Swap [Member]                                                              |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Derivative assets                                                                                                  | (1,359)       |          |  |
| Carrying Value [Member] | Interest Rate Locks and Forward Loan Sales Commitments [Member]                          |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Derivative assets                                                                                                  |          | (525)         |  |
| Estimated Fair Value [Member]                                                                                      |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Cash and cash equivalents                                                                                          | 28,006        | 95,882        |  |
| Available-for-sale securities                                                                                      | 375,929       | 350,040       |  |
| Held-to-maturity                                                                                                   | 151,935       | 140,875       |  |
| Loans held for sale                                                                                                | 4,089         | 2,796         |  |
| Loans held for investment, net                                                                                     | 1,501,039     | 1,328,895     |  |
| Accrued interest receivable                                                                                        | 5,526         | 4,885         |  |
| Deposits                                                                                                           | 1,898,024     | 1,793,205     |  |
| Retail repurchase agreements                                                                                       | 16,753        | 9,076         |  |
| Federal Home Loan Bank advances                                                                                    | 92,737        | 71,462        |  |
| Long-term notes payable                                                                                            | 5,396         | 5,338         |  |
| Junior subordinated debentures                                                                                     | 32,164        | 32,341        |  |
| Accrued interest payable                                                                                           | 366           | 3,624         |  |
| Estimated Fair Value [Member] | Interest Rate Swap [Member]                                                        |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Derivative assets                                                                                                  | $ (1,359)     |          |  |
| Estimated Fair Value [Member] | Interest Rate Locks and Forward Loan Sales Commitments [Member]                    |          |          |  |
| **Fair Value, Balance Sheet [Line Items]**                                                                         |          |          |  |
| Derivative assets                                                                                                  |          | $ (525)       |  |
|                                                                                                                    |
| [1]Derived from audited consolidated financial statements                                                          |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This item represents [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).
+ References
No definition available.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents interest earned but not received. Also called accrued interest or accrued interest receivable.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This item represents long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.
+ References
No definition available.
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value portion of borrowing from Federal Home Loan Bank (FHLBank).
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value of investments in debt securities classified as held-to-maturity.
+ References
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| X                                                                                                                                                                                                                                                                                                                                               |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Glossary Loan -URI http://asc.fasb.org/extlink&oid=6517073
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value portion of notes payable.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value portion of securities that an entity sells and agrees to repurchase at a specified date for a specified price.
+ References
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| X                                                                                                                                                           |
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| X                                                                                                                                                                                      |
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