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Note 9 - Hedging Activities (Details) (USD $) In Millions, unless otherwise specified | Mar. 31, 2014 | Dec. 31, 2013 | Feb. 29, 2012
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Note 9 - Hedging Activities (Details) [Line Items] |  |  |
Trust Preferred Securities |  |  | $ 32.0
Fair Value Of Interest Rate Swap Agreement Liability | 0.2 | 0.3 |
London Interbank Offered Rate (LIBOR) [Member] |  |  |
Note 9 - Hedging Activities (Details) [Line Items] |  |  |
Fixed Spread Added To Variable Rate On Our Trust Preferred Securities |  |  | 2.18%
Derivative, Notional Amount |  |  | $ 32.0

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition The fair value of the interest rate swap agreement liability. + References No definition available. + Details
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- Definition Fixed spread added to the variable rate on our trust preferred securities. + References No definition available. + Details
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- Details
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- Definition Trust preferred securities. + References No definition available. + Details
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