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Note 17 - Components of Accumulated Other Comprehensive Income (Tables) | 12 Months Ended
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Dec. 31, 2014
Disclosure Text Block [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Net Unrealized Gain (Loss) on Securities |  |  | Adjustments Related to Pension Benefits |  |  | Accumulated Other Comprehensive Income (Loss) |
Balance at December 31, 20 11 |  | $ | 2,646 |  |  |  | (3,967 | ) |  |  | (1,321 | )
Unrealized holding loss on available for sale securities net of tax of ($323) |  |  | (569 | ) |  |  | --- |  |  |  | (569 | )
Reclassification adjustment, net of tax of ($16) |  |  | (30 | ) |  |  | --- |  |  |  | (30 | )
Net pension loss arising during the period, net of tax of ($405) |  |  | --- |  |  |  | (752 | ) |  |  | (752 | )
Less amortization of prior service cost included in net periodic pension cost, net of tax of ($35) |  |  | --- |  |  |  | (66 | ) |  |  | (66 | )
Balance at December 31, 201 2 |  |  | 2,047 |  |  |  | (4,785 | ) |  |  | (2,738 | )
Unrealized holding loss on available for sale securities net of tax of ($8,665) |  |  | (16,091 | ) |  |  | --- |  |  |  | (16,091 | )
Reclassification adjustment, net of tax of $19 |  |  | 33 |  |  |  | --- |  |  |  | 33 |
Net pension gain arising during the period, net of tax of $1,022 |  |  | --- |  |  |  | 1,898 |  |  |  | 1,898 |
Less amortization of prior service cost included in net periodic pension cost, net of tax of ($35) |  |  | --- |  |  |  | (66 | ) |  |  | (66 | )
Balance at December 31, 201 3 |  |  | (14,011 | ) |  | $ | (2,953 | ) |  | $ | (16,964 | )
Unrealized holding gain on available for sale securities net of tax of $6,693 |  |  | 12,430 |  |  |  | --- |  |  |  | 12,430 |
Reclassification adjustment, net of tax of ($1) |  |  | (1 | ) |  |  | --- |  |  |  | (1 | )
Net pension loss arising during the period, net of tax of ($574) |  |  | --- |  |  |  | (1,066 | ) |  |  | (1,066 | )
Less amortization of prior service cost included in net periodic pension cost, net of tax of ($39) |  |  | --- |  |  |  | (71 | ) |  |  | (71 | )
Balance at December 31, 201 4 |  | $ | (1,582 | ) |  | $ | (4,090 | ) |  | $ | (5,672 | )
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] |
|  | December 31, |
|  | 201 4 |  |  | 2013 |  |  | 2012 |
Component of Accumulated Other Comprehensive Income |  |  |  |  |  |  |  |  |  |  |  |
Reclassification out of unrealized gains and losses on available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |  |
Realized securities (gains) losses, net |  | $ | (2 | ) |  | $ | 52 |  |  | $ | (46 | )
Income tax expense (benefit) |  |  | (1 | ) |  |  | 19 |  |  |  | (16 | )
Realized (gains) losses on available-for-sale securities, net of tax reclassified out of accumulated other comprehensive income |  | $ | (1 | ) |  | $ | 33 |  |  | $ | (30 | )
Amortization of defined benefit pension items: |  |  |  |  |  |  |  |  |  |  |  |
Prior service costs(1) |  | $ | (110 | ) |  | $ | (101 | ) |  | $ | (101 | )
Income tax expense (benefit) |  |  | (39 | ) |  |  | (35 | ) |  |  | (35 | )
Amortization of defined benefit pension items net of tax reclassified out of accumulate other comprehensive income |  | $ | (71 | ) |  | $ | (66 | ) |  | $ | (66 | )
| (1) | This accumulated other comprehensive income (loss) component is included in the computation of net periodic benefit cost. (For additional information, see Note 8, "Employee Benefit Plans.")

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- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated 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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