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Note 9 - Pension and Other Postretirement Benefit Plans (Tables) | 9 Months Ended
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Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract] |
Schedule of Net Benefit Costs [Table Text Block] |
|  | Three months ended September 30, |  |  | Nine months ended September 30, |
(In thousands) |  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Employee Pension Plan: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest cost |  | $ | 223 |  |  | $ | 207 |  |  | $ | 669 |  |  | $ | 621 |
Amortization of unrecognized loss |  |  | 190 |  |  |  | 306 |  |  |  | 570 |  |  |  | 918 |
Expected return on plan assets |  |  | (336 | ) |  |  | (315 | ) |  |  | (1,008 | ) |  |  | (945 | )
Net employee pension expense |  | $ | 77 |  |  | $ | 198 |  |  | $ | 231 |  |  | $ | 594 |
Outside Director Pension Plan: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 13 |  |  | $ | 21 |  |  | $ | 39 |  |  | $ | 63 |
Interest cost |  |  | 29 |  |  |  | 24 |  |  |  | 87 |  |  |  | 72 |
Amortization of unrecognized gain |  |  | (15 | ) |  |  | (9 | ) |  |  | (45 | ) |  |  | (27 | )
Amortization of past service liability |  |  | 10 |  |  |  | 9 |  |  |  | 30 |  |  |  | 27 |
Net outside director pension expense |  | $ | 37 |  |  | $ | 45 |  |  | $ | 111 |  |  | $ | 135 |
Other Postretirement Benefit Plans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 90 |  |  | $ | 112 |  |  | $ | 270 |  |  | $ | 336 |
Interest cost |  |  | 63 |  |  |  | 55 |  |  |  | 189 |  |  |  | 165 |
Amortization of unrecognized loss |  |  | - |  |  |  | 12 |  |  |  | - |  |  |  | 36 |
Amortization of past service credit |  |  | (22 | ) |  |  | (20 | ) |  |  | (67 | ) |  |  | (60 | )
Net other postretirement expense |  | $ | 131 |  |  | $ | 159 |  |  | $ | 392 |  |  | $ | 477 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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