Note 13 - Benfit Plans (Details) - Actual Pension Plan Asset Allocations			12 Months Ended			12 Months Ended			12 Months Ended
Dec. 31, 2013 Equity Securities [Member]	Dec. 31, 2012 Equity Securities [Member]	Dec. 31, 2013 Equity Securities [Member] Plus or Minus 1 to 5 Percent	Dec. 31, 2013 Debt Securities [Member]	Dec. 31, 2012 Debt Securities [Member]	Dec. 31, 2013 Debt Securities [Member] Plus or Minus 1 to 5 Percent	Dec. 31, 2013 Cash and Cash Equivalents [Member]	Dec. 31, 2012 Cash and Cash Equivalents [Member]	Dec. 31, 2013 Cash and Cash Equivalents [Member] Plus or Minus 1 to 5 Percent
Note 13 - Benfit Plans (Details) - Actual Pension Plan Asset Allocations [Line Items]
Target Allocation Range			60.00%			35.00%			5.00%
Actual Allocation	62.00%	58.00%		31.00%	33.00%		7.00%	9.00%

Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2446-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)(1)

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

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