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Consolidated Statements of Changes in Stockholders’ Equity (Unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified | 9 Months Ended
--- | ---
Sep. 30, 2014 | Sep. 30, 2013
Cash dividends declared and paid on common shares, per common share (in Dollars per share) | $ 0.45 | $ 0.39
Outstanding Common Shares Repurchased [Member] | Treasury Stock [Member] |  |
| 661,470 | 836,092
Shares Repurchased To Fund Options Exercised [Member] | Treasury Stock [Member] |  |
| 63,732 | 233,933
Additional Paid-in Capital [Member] |  |
Award of common shares released from Employee Benefit Trust, common shares | 133,446 | 141,059
Shares issued upon vesting of restricted stock | 7,300 | 120,014
| 105,925 | 235,025
Treasury Stock [Member] |  |
Shares issued upon vesting of restricted stock | 198,536 | 176,656
| 105,925 | 300,195
| 55,649 | 57,411
Retained Earnings [Member] |  |
Shares issued upon vesting of restricted stock | 191,236 | 56,642
| 8,000 | 65,170
Cash dividends declared and paid on common shares, per common share (in Dollars per share) | $ 0.45 | $ 0.39
Accumulated Other Comprehensive Income (Loss) [Member] |  |
Change in net unrealized gains (losses) on securities available for sale, taxes (in Dollars) | $ (7,484) | $ 15,482
Amortization of actuarial losses, taxes (in Dollars) | (266) | (405)
Amortization of prior service credits, taxes (in Dollars) | 18 | 15
OTTI charges included in income, net of taxes (in Dollars) |  | (620)
Reclassification adjustment for gains included in net income, tax (in Dollars) | $ 2,238 | $ 1,299

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- Definition Amount of tax (expense) benefit of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) related to pension and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e689-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e640-108580 + Details
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- Definition Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e640-108580 + Details
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