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Investment in Securities | 6 Months Ended
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Jun. 30, 2012
Investments, Debt and Equity Securities [Abstract] |
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] | Note 11 – Investment in Securities Investment securities available-for-sale are recorded at fair value on a recurring basis. The Company’s investment securities available-for-sale are measured at fair value using Level 2 valuations. The market evaluation utilizes several sources which include “observable inputs” rather than “significant unobservable inputs” and therefore falls into the Level 2 category. The amortized cost, gross unrealized gains, gross unrealized losses and fair value of investment securities are summarized as follows:
|  | June 30, 2012
|  |  |  |  | Gross |  | Gross |  |  |
|  | Amortized |  | Unrealized |  | Unrealized |  |  |
(In thousands) |  | Cost |  | Gains |  | Losses |  | Fair Value
State and political subdivisions |  | $ | 299,031 |  | $ | 18,648 |  | $ | 313 |  | $ | 317,366
Certificates of deposit |  |  | 5,423 |  |  | — |  |  | — |  |  | 5,423
Total |  | $ | 304,454 |  | $ | 18,648 |  | $ | 313 |  | $ | 322,789
|  | December 31, 2011
|  |  |  |  | Gross |  | Gross |  |  |
|  | Amortized |  | Unrealized |  | Unrealized |  |  |
(In thousands) |  | Cost |  | Gains |  | Losses |  | Fair Value
State and political subdivisions |  | $ | 287,585 |  | $ | 19,797 |  | $ | 20 |  | $ | 307,362
Certificates of deposit |  |  | 3,250 |  |  | — |  |  | — |  |  | 3,250
Total |  | $ | 290,835 |  | $ | 19,797 |  | $ | 20 |  | $ | 310,612
The fair values of securities with unrealized losses are as follows:
|  | June 30, 2012
|  | Less than 12 months |  | 12 months or more |  | Total
|  | Estimated |  | Unrealized |  | Estimated |  | Unrealized |  | Estimated |  | Unrealized
(In thousands) |  | fair value |  | losses |  | fair value |  | losses |  | Fair value |  | Losses
State and political |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
subdivisions |  | $ | 39,964 |  | $ | 313 |  | $ | — |  | $ | — |  | $ | 39,964 |  | $ | 313
Certificates of deposit |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | —
Total |  | $ | 39,964 |  | $ | 313 |  | $ | — |  | $ | — |  | $ | 39,964 |  | $ | 313
|  | December 31, 2011
|  | Less than 12 months |  | 12 months or more |  | Total
|  | Estimated |  | Unrealized |  | Estimated |  | Unrealized |  | Estimated |  | Unrealized
(In thousands) |  | fair value |  | losses |  | fair value |  | losses |  | Fair value |  | Losses
State and political |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
subdivisions |  | $ | 4,362 |  | $ | 20 |  | $ | — |  | $ | — |  | $ | 4,362 |  | $ | 20
Certificates of deposit |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | —
Total |  | $ | 4,362 |  | $ | 20 |  | $ | — |  | $ | — |  | $ | 4,362 |  | $ | 20
There were 46 securities (none greater than 12 months) in an unrealized loss position as of June 30, 2012. There were seven securities (none greater than 12 months) in an unrealized loss position as of December 31, 2011. All unrealized losses were reviewed to determine whether the losses were other than temporary. Management believes that all unrealized losses are temporary since they were market driven, and the Company has the ability and intent to hold these securities until maturity. The amortized cost and fair value of investment securities by contractual maturity are shown in the following table. Expected maturities may differ from contractual maturities because borrowers have the right to prepay obligations with or without prepayment penalties.
|  | June 30, 2012
(In thousands) |  | Amortized Cost |  | Fair Value
Due in 1 year or less |  | $ | 9,303 |  | $ | 9,404
Due after 1 year through 5 years |  |  | 55,153 |  |  | 59,392
Due after 5 years through 10 years |  |  | 138,102 |  |  | 146,603
Due after 10 years |  |  | 101,896 |  |  | 107,390
Total |  | $ | 304,454 |  | $ | 322,789
Proceeds from sales of investment securities classified as available for sale were $15,090,000 and $4,904,000 for the three months ended June 30, 2012 and 2011, respectively, and were $29,749,000 and $5,405,000 for the six months ended June 30, 2012 and 2011, respectively. Gross realized gains were $1,168,000 and $48,000 for the three months ended June 30, 2012 and 2011, respectively, and were $2,134,000 and $48,000 for the six months ended June 30, 2012 and 2011, respectively. There was one security for $3,250,000 pledged to secure public deposits and for other purposes at June 30, 2012.

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 3, 19, 20, 21, 22, 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 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 Accounting Standards Codification -Topic 320 -Glossary Equity Security -URI http://asc.fasb.org/extlink&oid=6511694 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -Glossary Debt Security -URI http://asc.fasb.org/extlink&oid=6509901 Reference 7: 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 8: 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 Reference 9: 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 10: 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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