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Securities (Investments' Gross Unrealized Losses and Fair Value) (Details) (USD $) In Thousands, unless otherwise specified | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2013 | Dec. 31, 2012
Schedule of Investments [Line Items] |  |
Less than 12 Months, Fair Value | $ 85,674 | $ 30,076
Less than 12 Months, Unrealized Losses | (3,490) | (206)
12 Months or More, Fair Value | 924 |
12 Months or More, Unrealized Losses | (15) |
Total, Fair Value | 86,598 | 30,076
Total, Unrealized Losses | (3,505) | (206)
U.S. Government Agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Less than 12 Months, Fair Value | 22,853 | 7,056
Less than 12 Months, Unrealized Losses | (811) | (20)
Total, Fair Value | 22,853 | 7,056
Total, Unrealized Losses | (811) | (20)
States and political subdivisions [Member] |  |
Schedule of Investments [Line Items] |  |
Less than 12 Months, Fair Value | 22,084 | 5,821
Less than 12 Months, Unrealized Losses | (1,428) | (73)
Total, Fair Value | 22,084 | 5,821
Total, Unrealized Losses | (1,428) | (73)
Corporate obligations [Member] |  |
Schedule of Investments [Line Items] |  |
Less than 12 Months, Fair Value | 2,496 |
Less than 12 Months, Unrealized Losses | (98) |
Total, Fair Value | 2,496 |
Total, Unrealized Losses | (98) |
Mortgage-backed securities-government sponsored entities [Member] |  |
Schedule of Investments [Line Items] |  |
Less than 12 Months, Fair Value | 38,059 | 17,199
Less than 12 Months, Unrealized Losses | (1,150) | (113)
12 Months or More, Fair Value | 924 |
12 Months or More, Unrealized Losses | (15) |
Total, Fair Value | 38,983 | 17,199
Total, Unrealized Losses | (1,165) | (113)
Equity securities-financial services [Member] |  |
Schedule of Investments [Line Items] |  |
Less than 12 Months, Fair Value | 182 |
Less than 12 Months, Unrealized Losses | (3) |
Total, Fair Value | 182 |
Total, Unrealized Losses | $ (3) |
Less than 12 Months [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 101 |
12 Months or More [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 1 |

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- Definition Amount of unrealized loss on securities classified as available-for-sale that have been in a loss position for twelve months or longer. + 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 (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition Amount of unrealized loss on securities classified 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 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition Amount of unrealized loss on investments in available-for-sale securities that have been in a loss position for less than twelve months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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