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Note 11 - Components of Net Periodic Benefit Cost (Details) (USD $) In Millions, unless otherwise specified | 1 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2013 acre | Nov. 30, 2012 acre | Apr. 30, 2011 acre | Jun. 30, 2014 acre | Oct. 31, 2011 | Dec. 31, 2009
Compensation and Retirement Disclosure [Abstract] |  |  |  |  |  |
Defined Benefit Plan Security to Support Unfunded Liabilities |  |  |  |  |  | $ 5.2
Area of Real Estate Property Pledged as Security (in Acres) |  | 7,000 | 1,400 |  |  |
Defined Benefit Plan, Period for Release of Real Estate Property Pledged as Security |  | 5 years | 5 years |  |  |
Defined Benefit Plan, Additional Security to Support Unfunded Liabilities |  |  |  |  | 18.7 |
Defined Benefit Plan Number of Pension Plans Provided Security |  |  |  |  | 2 |
Area of Real Estate Property Proposed to be Sold (in Acres) | 270 |  |  |  |  |
Defined Benefit Pension Plan, Liabilities, Noncurrent |  |  |  | 20.6 |  |
Area of Real Estate Property Held as Collateral for Unfunded Pension Obligations (in Acres) |  |  |  | 7,000 |  |
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year |  |  |  | 2.8 |  |
Defined Benefit Plan, Contributions by Employer |  |  |  | $ 0.5 |  |

X
- Definition Represents the area of real estate secured for unfunded pension obligations. + References No definition available. + Details
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X
- Definition Represents the area of real estate which is proposed to be sold. + References No definition available. + Details
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- Definition Represents the additional security provided to support the unfunded liabilities of the pension plans. + References No definition available. + Details
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- Definition Represents the area of real estate property pledged as security. + References No definition available. + Details
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- Definition Represents the number of pension plans that the entity was required to provide additional security for the unfunded liabilities. + References No definition available. + Details
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- Definition This represents the noncurrent liability recognized in the balance sheet that is associated with the defined benefit pension plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2417-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2410-114920 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=21915240&loc=d3e1703-114919 + Details
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- Definition The increase in the fair value of plan assets from contributions made by the employer. + 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 (b)(3) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period. + References No definition available. + Details
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