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Securities (Tables) | 3 Months Ended
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Mar. 31, 2013
Securities [Abstract] |
Amortized costs, gross unrealized gains, gross unrealized losses and fair values for securities available for sale by major security type | The amortized costs, gross unrealized gains, gross unrealized losses and fair values for securities available for sale by major security type are as follows.
|  | March 31, 2013 |
|  | Amortized Costs |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Values |
Available for Sale: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury |  | $ | 2,003 |  |  | $ | 50 |  |  | $ | --- |  |  | $ | 2,053 |
U.S. Government agencies |  |  | 137,851 |  |  |  | 976 |  |  |  | 1,189 |  |  |  | 137,638 |
Mortgage-backed securities |  |  | 3,739 |  |  |  | 333 |  |  |  | --- |  |  |  | 4,072 |
States and political subdivisions |  |  | 32,082 |  |  |  | 1,505 |  |  |  | 4 |  |  |  | 33,583 |
Corporate |  |  | 11,809 |  |  |  | 178 |  |  |  | 52 |  |  |  | 11,935 |
Other securities |  |  | 2,393 |  |  |  | --- |  |  |  | 134 |  |  |  | 2,259 |
Total |  | $ | 189,877 |  |  | $ | 3,042 |  |  | $ | 1,379 |  |  | $ | 191,540 |
|  | December 31, 2012 |
|  | Amortized Costs |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Values |
Available for Sale: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury |  | $ | 2,005 |  |  | $ | 68 |  |  | $ | --- |  |  | $ | 2,073 |
U.S. Government agencies |  |  | 128,805 |  |  |  | 1,381 |  |  |  | 622 |  |  |  | 129,564 |
Mortgage-backed securities |  |  | 4,202 |  |  |  | 367 |  |  |  | --- |  |  |  | 4,569 |
States and political subdivisions |  |  | 35,029 |  |  |  | 1,753 |  |  |  | 3 |  |  |  | 36,779 |
Corporate |  |  | 14,207 |  |  |  | 368 |  |  |  | --- |  |  |  | 14,575 |
Other securities |  |  | 2,419 |  |  |  | 9 |  |  |  | 173 |  |  |  | 2,255 |
Total |  | $ | 186,667 |  |  | $ | 3,946 |  |  | $ | 798 |  |  | $ | 189,815 |
Amortized costs, gross unrealized gains, gross unrealized losses and fair values for securities held to maturity by major security type | The amortized costs, gross unrealized gains, gross unrealized losses and fair values for securities held to maturity by major security type are as follows.
|  | March 31, 2013 |
|  | Amortized Costs |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Values |
Held to Maturity: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Government agencies |  | $ | 13,985 |  |  | $ | 507 |  |  | $ | 33 |  |  | $ | 14,459 |
Mortgage-backed securities |  |  | 644 |  |  |  | 72 |  |  |  | --- |  |  |  | 716 |
States and political subdivisions |  |  | 151,668 |  |  |  | 7,851 |  |  |  | 1,127 |  |  |  | 158,392 |
Corporate |  |  | 650 |  |  |  | 1 |  |  |  | --- |  |  |  | 651 |
Total |  | $ | 166,947 |  |  | $ | 8,431 |  |  | $ | 1,160 |  |  | $ | 174,218 |
|  | December 31, 2012 |
|  | Amortized Costs |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Values |
Held to Maturity: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Government agencies |  | $ | 7,988 |  |  | $ | 563 |  |  | $ | --- |  |  | $ | 8,551 |
Mortgage-backed securities |  |  | 691 |  |  |  | 73 |  |  |  | --- |  |  |  | 764 |
States and political subdivisions |  |  | 151,209 |  |  |  | 9,880 |  |  |  | 216 |  |  |  | 160,873 |
Corporate |  |  | 651 |  |  |  | 7 |  |  |  | --- |  |  |  | 658 |
Total |  | $ | 160,539 |  |  | $ | 10,523 |  |  | $ | 216 |  |  | $ | 170,846 |
Temporarily impaired securities with gross unrealized losses and fair value | Information pertaining to securities with gross unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous loss position, follows.
|  | March 31, 2013 |
|  | Less Than 12 Months |  |  | 12 Months or More |
|  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |
Temporarily Impaired Securities: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Government agencies and corporations |  | $ | 85,100 |  |  | $ | 1,222 |  |  | $ | --- |  |  | $ | --- |
States and political subdivisions |  |  | 28,178 |  |  |  | 1,127 |  |  |  | 481 |  |  |  | 4 |
Corporate debt securities |  |  | 3,974 |  |  |  | 52 |  |  |  | --- |  |  |  | --- |
Other |  |  | --- |  |  |  | --- |  |  |  | 360 |  |  |  | 134 |
Total |  | $ | 117,252 |  |  | $ | 2,401 |  |  | $ | 841 |  |  | $ | 138 |
| December 31, 2012 |
| Less Than 12 Months |  | 12 Months or More |
| Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss |
Temporarily Impaired Securities: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Government agencies and corporations |  | $ | 44,351 |  |  | $ | 622 |  |  | $ | --- |  |  | $ | --- |
States and political subdivisions |  |  | 9,358 |  |  |  | 216 |  |  |  | 482 |  |  |  | 3 |
Other |  |  | --- |  |  |  | --- |  |  |  | 133 |  |  |  | 172 |
Total |  | $ | 53,709 |  |  | $ | 838 |  |  | $ | 615 |  |  | $ | 175 |

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- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to 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 6 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27198-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-1 -Paragraph 21 -Subparagraph a, 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 17 -Subparagraph a, 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 6: 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=6872113&loc=d3e27337-111563 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19, 20, 21 -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 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 + Details
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- Definition Tabular disclosure of all investments in certain debt and equity securities for which the entity has the positive intent and ability to hold until maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6435544&loc=d3e41834-113960 Reference 2: 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=7512638&loc=d3e5086-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 137 -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27232-111563 Reference 5: 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=6872113&loc=d3e27337-111563 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27405-111563 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 + Details
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- Definition Tabular disclosure of investments in an unrealized loss position for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), including: (a) the aggregate related fair value of investments with unrealized losses, (b) the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 + Details
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