| **Disclosures About Fair Value of Assets and Liabilities - Unobservable Inputs Used in Recurring and Nonrecurring Level 3 Fair Value Measurements Other Than Goodwill (Details) (USD $)In Thousands, unless otherwise specified** | 6 Months Ended |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------|
||
| Discounted Cash Flow | State and municipal | Minimum                                                                                                                                                                              |           |
| **Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]**                                                                                                                                        |           |
| Maturity/Call date                                                                                                                                                                                                                | 1 month        |
| Blend of US Muni BQ curve                                                                                                                                                                                                         | A-             |
| Discount rate                                                                                                                                                                                                                     | 1.00%          |
| Discounted Cash Flow | State and municipal | Maximum                                                                                                                                                                              |           |
| **Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]**                                                                                                                                        |           |
| Maturity/Call date                                                                                                                                                                                                                | 11 years       |
| Blend of US Muni BQ curve                                                                                                                                                                                                         | BBB-           |
| Discount rate                                                                                                                                                                                                                     | 4.00%          |
| Discounted Cash Flow | Corporate obligations                                                                                                                                                                                      |           |
| **Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]**                                                                                                                                        |           |
| Risk free rate                                                                                                                                                                                                                    | 3 month LIBOR  |
| Discount to reflect current market conditions                                                                                                                                                                                     | 2.00%          |
| Collateral Based Measurements | Impaired loans (collateral dependent) | Minimum                                                                                                                                                   |           |
| **Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]**                                                                                                                                        |           |
| Discount to reflect current market conditions and ultimate collectability                                                                                                                                                         | 0.00%          |
| Collateral Based Measurements | Impaired loans (collateral dependent) | Maximum                                                                                                                                                   |           |
| **Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]**                                                                                                                                        |           |
| Discount to reflect current market conditions and ultimate collectability                                                                                                                                                         | 50.00%         |
| Appraisals | Other real estate owned | Minimum                                                                                                                                                                                    |           |
| **Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]**                                                                                                                                        |           |
| Discount to reflect current market conditions                                                                                                                                                                                     | 0.00%          |
| Appraisals | Other real estate owned | Maximum                                                                                                                                                                                    |           |
| **Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]**                                                                                                                                        |           |
| Discount to reflect current market conditions                                                                                                                                                                                     | 20.00%         |
| Significant Unobservable Inputs (Level 3) | Discounted Cash Flow | State and municipal                                                                                                                                            |           |
| **Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]**                                                                                                                                        |           |
| Fair Value                                                                                                                                                                                                                        | $ 17,163       |
| Significant Unobservable Inputs (Level 3) | Discounted Cash Flow | Corporate obligations                                                                                                                                          |           |
| **Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]**                                                                                                                                        |           |
| Fair Value                                                                                                                                                                                                                        | 752            |
| Significant Unobservable Inputs (Level 3) | Collateral Based Measurements | Impaired loans (collateral dependent)                                                                                                                 |           |
| **Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]**                                                                                                                                        |           |
| Fair Value                                                                                                                                                                                                                        | 14,230         |
| Significant Unobservable Inputs (Level 3) | Appraisals | Other real estate owned                                                                                                                                                  |           |
| **Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]**                                                                                                                                        |           |
| Fair Value                                                                                                                                                                                                                        | $ 7,949        |

| X                                                                                                                                                                                                                                                                    |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair Value Inputs, Discount Rate Description
+ References
No definition available.
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| X                                                                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Securities, Maturity
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - 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 Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7534914&loc=d3e22054-111558Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 12 -Subparagraph b -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.Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Description of the credit rating indicative of likelihood of repayment of the debt instrument given by a credit rating agency (for example, Standard and Poor's, Moody's, Fitch).
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -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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| X                                                                                                                                                                                                                                    |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Adjustment to the discount rate used to measure fair value for lack of ability to convert business interests into cash quickly.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value.  For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Rate at which loans or a loan portfolio are expected to prepay principal balances, used as an input to measure fair value.
+ References
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