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Investments - Textual (Details) (USD $) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013
Schedule of Available-for-sale Securities |  |  |  |  |
Available-for-sale Securities Pledged as Collateral | $ 107,847,000 |  | $ 107,847,000 |  |
Available-for-sale Securities, Gross Unrealized Gain (Loss) |  |  | 7,061,000 |  | (3,884,000)
Income tax impact from the reclassification of unrealized net gains on available-for-sale securities to realized net gains on available-for-sale securities | 26,000 | 132,000 | 137,000 | 466,000 |
Transfer of securities from available-for-sale to held-to-maturity |  |  | 31,346,000 | 0 |
Fair value of held-to-maturity investment securities transferred | 32,047,000 |  | 32,047,000 |  |
Unrealized gain on transfer of securities from available-for-sale to held-to-maturity |  |  | 163,000 | 0 |
U.S. Government agencies |  |  |  |  |
Schedule of Available-for-sale Securities |  |  |  |  |
Available-for-sale Securities, Number of Positions | 7 |  | 7 |  |
Debt Securities, Amortized Cost | 17,286,000 |  | 17,286,000 |  | 18,172,000
Obligations of states and political subdivisions |  |  |  |  |
Schedule of Available-for-sale Securities |  |  |  |  |
Available-for-sale Securities, Number of Positions | 142 |  | 142 |  |
Debt Securities, Amortized Cost | 133,521,000 |  | 133,521,000 |  | 162,018,000
U.S. Government agencies collateralized by residential mortgage obligations |  |  |  |  |
Schedule of Available-for-sale Securities |  |  |  |  |
Available-for-sale Securities, Number of Positions | 211 |  | 211 |  |
Debt Securities, Amortized Cost | 272,082,000 |  | 272,082,000 |  | 254,978,000
Private label residential mortgage backed securities |  |  |  |  |
Schedule of Available-for-sale Securities |  |  |  |  |
Available-for-sale Securities, Gross Unrealized Gain (Loss) |  |  | 1,358,000 |  |
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions | 0 |  | 0 |  |
Available-for-sale Equity Securities, Amortized Cost Basis | 21 |  | 21 |  |
Debt Securities, Amortized Cost | 3,677,000 |  | 3,677,000 |  | 4,344,000
Other equity securities |  |  |  |  |
Schedule of Available-for-sale Securities |  |  |  |  |
Available For Sale Securities, Number of Securities | 2 |  | 2 |  |
Available-for-sale Equity Securities, Amortized Cost Basis | 7,596,000 |  | 7,596,000 |  | 7,596,000
Less than 12 months | U.S. Government agencies |  |  |  |  |
Schedule of Available-for-sale Securities |  |  |  |  |
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions | 4 |  | 4 |  |
Less than 12 months | Obligations of states and political subdivisions |  |  |  |  |
Schedule of Available-for-sale Securities |  |  |  |  |
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions | 5 |  | 5 |  |
Less than 12 months | U.S. Government agencies collateralized by residential mortgage obligations |  |  |  |  |
Schedule of Available-for-sale Securities |  |  |  |  |
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions | 22 |  | 22 |  |
Greater than 12 months | U.S. Government agencies |  |  |  |  |
Schedule of Available-for-sale Securities |  |  |  |  |
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions | 1 |  | 1 |  |
Greater than 12 months | Obligations of states and political subdivisions |  |  |  |  |
Schedule of Available-for-sale Securities |  |  |  |  |
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions | 25 |  | 25 |  |
Greater than 12 months | U.S. Government agencies collateralized by residential mortgage obligations |  |  |  |  |
Schedule of Available-for-sale Securities |  |  |  |  |
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions | 19 |  | 19 |  |
Below investment grade | Private label residential mortgage backed securities |  |  |  |  |
Schedule of Available-for-sale Securities |  |  |  |  |
Available-for-sale Securities, Number of Positions | 11 |  | 11 |  |
Debt Securities, Amortized Cost | $ 3,121,000 |  | $ 3,121,000 |  |

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- Definition This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References No definition available. + Details
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- Definition Amount of unrealized gain (loss) on investments in debt and equity securities classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 + Details
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- Definition Number of investment positions in available-for-sale investments in a continuous unrealized loss position for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition The fair value of available-for-sale securities that serve as collateral for borrowings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5086-111524 + Details
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