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Comprehensive Income Other Comprehensive Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Schedule of Comprehensive Income [Line Items] |  |  |  |  |
Other comprehensive income, before reclassifications, net of tax | [1] | $ (1,014) | $ 514 | $ (159) | $ 755
Reclassification from Accumulated Other Comprehensive Income, net of tax | [1] | 99 | 72 | 154 | 129
Other Comprehensive Income, before Tax |  | (1,505) | 970 | (8) | 1,463
Other Comprehensive Income, Tax |  | 590 | (384) |  |
Other Comprehensive Income | [1] | (915) | 586 | (5) | 884
Unrealized Gains and Losses on Available for Sale Securities [Member] |  |  |  |  |
Schedule of Comprehensive Income [Line Items] |  |  |  |  |
Other Comprehensive Income Loss Before Reclassifications Before Tax |  | (1,668) | 850 | (261) | 1,249
Other Comprehensive Income Loss Before Reclassifications Tax (Expense) Benefit |  | 654 | (336) |  |
Other comprehensive income, before reclassifications, net of tax |  | (1,014) | 514 | (159) | 755
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax |  | (16) | 27 | (106) | 27
Reclassification From Accumulated Other Comprehensive Income Current Period Tax (Expense) Benefit |  | 6 | (11) |  |
Reclassification from Accumulated Other Comprehensive Income, net of tax |  | (10) | 16 | (65) | 16
Other Comprehensive Income | [1] | (1,024) | 530 | (224) | 771
Amortization of Net Retirement Plan Actuarial Loss [Member] |  |  |  |  |
Schedule of Comprehensive Income [Line Items] |  |  |  |  |
Other comprehensive income, before reclassifications, net of tax | [1] | 0 | 0 | 0 | 0
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax |  | 194 | 114 | 387 | 230
Reclassification From Accumulated Other Comprehensive Income Current Period Tax (Expense) Benefit |  | (76) | (45) |  |
Reclassification from Accumulated Other Comprehensive Income, net of tax |  | 118 | 69 | 235 | 139
Other Comprehensive Income | [1] | 118 | 69 | 235 | 139
Accretion of Net Retirement Plan Prior Service Credit [Member] |  |  |  |  |
Schedule of Comprehensive Income [Line Items] |  |  |  |  |
Other comprehensive income, before reclassifications, net of tax | [1] | 0 | 0 | 0 | 0
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax |  | (15) | (21) | (28) | (43)
Reclassification From Accumulated Other Comprehensive Income Current Period Tax (Expense) Benefit |  | 6 | 8 |  |
Reclassification from Accumulated Other Comprehensive Income, net of tax |  | (9) | (13) | (16) | (26)
Other Comprehensive Income | [1] | $ (9) | $ (13) | $ (16) | $ (26)
[1] | All amounts are net of tax. Amounts in parentheses indicate debits.

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- Definition Amount before tax and reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 + Details
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- Definition Amount after tax, before reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=51821188&loc=d3e1436-108581 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 + Details
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