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Note 14 - Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2015
Disclosure Text Block [Abstract] |
Comprehensive Income (Loss) [Table Text Block] |
|  | Unrealized Gains (Losses) On Securities |  |  | Adjustments For Pension Plans |  |  | Total Accumulated Other Comprehensive Loss, Net |
Balance January 1, 2013 |  | $ | 2,059 |  |  | $ | (25,977 | ) |  | $ | (23,918 | )
2013 change |  |  | (4,611 | ) |  |  | 2,230 |  |  |  | (2,381 | )
Balance December 31, 2013 |  |  | (2,552 | ) |  |  | (23,747 | ) |  |  | (26,299 | )
2014 change |  |  | 1,143 |  |  |  | (6,875 | ) |  |  | (5,732 | )
Balance December 31, 2014 |  |  | (1,409 | ) |  |  | (30,622 | ) |  |  | (32,031 | )
2015 change |  |  | 250 |  |  |  | (850 | ) |  |  | (600 | )
Balance December 31, 2015 |  | $ | (1,159 | ) |  | $ | (31,472 | ) |  | $ | (32,631 | )
Comprehensive Income Loss Income Tax Effect [Table Text Block] |
|  | Income Tax Effect of: |
|  | Unrealized Gains (Losses) On Securities |  |  | Adjustments For Pension Plans |  |  | Total Accumulated Other Comprehensive Loss, Net |
Balance January 1, 2013 |  | $ | 602 |  |  | $ | 7,276 |  |  | $ | 7,878 |
2013 change |  |  | 17 |  |  |  | (1,512 | ) |  |  | (1,495 | )
Balance December 31, 2013 |  |  | 619 |  |  |  | 5,764 |  |  |  | 6,383 |
2014 change |  |  | 6 |  |  |  | 4,653 |  |  |  | 4,659 |
Balance December 31, 2014 |  |  | 625 |  |  |  | 10,417 |  |  |  | 11,042 |
2015 change |  |  | 6 |  |  |  | 213 |  |  |  | 219 |
Balance December 31, 2015 |  | $ | 631 |  |  | $ | 10,630 |  |  | $ | 11,261 |

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans 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 1 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e526-108580 + Details
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