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Note 9 - Components of Accumulated Other Comprehensive Loss (Tables) | 3 Months Ended
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Mar. 31, 2016
Notes Tables |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Net Unrealized Gain (Loss) on Securities |  |  | Adjustments Related to Pension Benefits |  |  | Accumulated Other Comprehensive Loss |
Balance at December 31, 201 4 |  | $ | (1,582 | ) |  | $ | (4,090 | ) |  | $ | (5,672 | )
Unrealized holding gains on available for sale securities, net of tax of $1,320 |  |  | 2,452 |  |  |  | --- |  |  |  | 2,452 |
Reclassification adjustment, net of tax of $1 |  |  | 1 |  |  |  | --- |  |  |  | 1 |
Balance at March 31, 2015 |  | $ | 871 |  |  | $ | (4,090 | ) |  | $ | (3,219 | )
Balance at December 31, 201 5 |  | $ | (2,666 | ) |  | $ | (5,270 | ) |  | $ | (7,936 | )
Unrealized holding gains on available for sale securities net of tax of $1,809 |  |  | 3,359 |  |  |  | --- |  |  |  | 3,359 |
Reclassification adjustment, net of tax of ($8) |  |  | (16 | ) |  |  | --- |  |  |  | (16 | )
Balance at March 31, 2016 |  | $ | 677 |  |  | $ | (5,270 | ) |  | $ | (4,593 | )
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] |
|  | Three Months Ended |
|  | March 31, 2016 |  |  | March 31, 2015 |
Reclassification out of unrealized gains and losses on available-for-sale securities: |  |  |  |  |  |  |  |
Realized securities (gains) losses, net |  | $ | (24 | ) |  | $ | 2 |
Income tax expense (benefit) |  |  | 8 |  |  |  | (1 | )
Realized (gains) losses on available-for-sale securities, net of tax, reclassified out of accumulated other comprehensive income |  | $ | (16 | ) |  | $ | 1 |

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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=66004124&loc=SL7669686-108580 + Details
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