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Investment Securities (Summary of Cost Basis and Fair Values of Investment Securities) (Details) (USD $) In Thousands, unless otherwise specified | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2013 | Dec. 31, 2012
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Investment securities available for sale, Cost Basis | $ 147,058 | $ 145,265
Investment securities available for sale, Gross Unrealized Gains | 3,950 | 6,393
Investment securities available for sale, Gross Unrealized Losses | (1,352) | (120)
Available for Sale, Fair Value, Total | 149,656 | 151,538
Investment securities held to maturity, Cost Basis | 18,628 | 13,723
Investment securities held to maturity, Gross Unrealized Gains | 325 | 598
Investment securities held to maturity, Gross Unrealized Losses | (474) | (55)
Held to Maturity, Fair Value, Total | 18,479 | 14,266
U.S. Agency [Member] |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Investment securities available for sale, Cost Basis | 8,049 | 5,848
Investment securities available for sale, Gross Unrealized Gains | 39 | 70
Investment securities available for sale, Gross Unrealized Losses | (164) | (7)
Available for Sale, Fair Value, Total | 7,924 | 5,911
U.S. Agency mortgage-backed securities [Member] |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Investment securities available for sale, Cost Basis | 127,018 | 131,425
Investment securities available for sale, Gross Unrealized Gains | 3,881 | 6,320
Investment securities available for sale, Gross Unrealized Losses | (928) | (10)
Available for Sale, Fair Value, Total | 129,971 | 137,735
Investment securities held to maturity, Cost Basis | 13,621 | 9,318
Investment securities held to maturity, Gross Unrealized Gains | 325 | 578
Investment securities held to maturity, Gross Unrealized Losses | (330) |
Held to Maturity, Fair Value, Total | 13,616 | 9,896
Corporate bonds [Member] |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Investment securities available for sale, Cost Basis | 11,991 | 7,992
Investment securities available for sale, Gross Unrealized Gains | 30 | 3
Investment securities available for sale, Gross Unrealized Losses | (260) | (103)
Available for Sale, Fair Value, Total | 11,761 | 7,892
Corporate bonds and other securities [Member] |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Investment securities held to maturity, Cost Basis | 5,007 | 3,995
Investment securities held to maturity, Gross Unrealized Gains |  | 14
Investment securities held to maturity, Gross Unrealized Losses | (83) | (55)
Held to Maturity, Fair Value, Total | 4,863 | 3,954
Taxable Municipal [Member] |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Investment securities held to maturity, Cost Basis | 1,012 | 410
Investment securities held to maturity, Gross Unrealized Gains |  | 6
Investment securities held to maturity, Gross Unrealized Losses | (61) |
Held to Maturity, Fair Value, Total | $ 951 | $ 416

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + 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=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 + Details
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- Definition This item represents the cost of debt and equity 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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of unrealized gain before deducting unrealized 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 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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- Definition Amount of unrealized loss before deducting unrealized gain on investments in 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 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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- Definition Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.6) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Fair value of investments in debt securities classified as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 + Details
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- Definition Amount of unrecognized gain before loss on investments in held-to-maturity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 + Details
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- Definition Amount of unrecognized loss before gain on investments in held-to-maturity securities. Excludes write-down for other than temporary impairment (OTTI). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 + Details
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