Note 10 - Retirement and Postretirement Plans (Details) - Expected Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013
Pension Plan, Defined Benefit [Member]
Employer Contributions
2014 to participant benefits	$ 49,439
2014	27,357
2015	27,794
2016	28,240
2017	29,044
2018	29,340
2019-2023	152,390
Other Pension Plan, Postretirement or Supplemental Plans, Defined Benefit [Member]
Employer Contributions
2014 to participant benefits	2,068
2014	2,068
2015	2,040
2016	2,062
2017	2,054
2018	2,053
2019-2023	$ 9,909

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Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan.

+ 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 (f)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

+ 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 (g)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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