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Note 8 - Derivatives Instruments and Hedging Activities (Details) - Interest Rate Swaps (USD $)
In Thousands, unless otherwise specified
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Dec. 31, 2013
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Dec. 31, 2012
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| Note 8 - Derivatives Instruments and Hedging Activities (Details) - Interest Rate Swaps [Line Items] |
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| Maturity - Notional Amount (in Dollars) |
$ 350,000 |
[1] |
$ 358,380 |
[1] |
| Maturity - Weighted Average Fixed Pay Interest Rate |
0.69% |
[1] |
0.74% |
[1] |
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Within Thirty Days [Member]
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| Note 8 - Derivatives Instruments and Hedging Activities (Details) - Interest Rate Swaps [Line Items] |
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| Maturity - Notional Amount (in Dollars) |
0 |
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8,380 |
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| Maturity - Weighted Average Fixed Pay Interest Rate |
0.00% |
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2.93% |
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Over Twelve Months to Twenty-Four Months [Member]
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| Note 8 - Derivatives Instruments and Hedging Activities (Details) - Interest Rate Swaps [Line Items] |
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| Maturity - Notional Amount (in Dollars) |
135,000 |
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| Maturity - Weighted Average Fixed Pay Interest Rate |
0.45% |
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Over Twenty-Four Months to Thirty-Six Months [Member]
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| Note 8 - Derivatives Instruments and Hedging Activities (Details) - Interest Rate Swaps [Line Items] |
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| Maturity - Notional Amount (in Dollars) |
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135,000 |
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| Maturity - Weighted Average Fixed Pay Interest Rate |
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0.45% |
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Over Thirty-Six Months to Forty-Eight Months [Member]
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| Note 8 - Derivatives Instruments and Hedging Activities (Details) - Interest Rate Swaps [Line Items] |
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| Maturity - Notional Amount (in Dollars) |
215,000 |
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| Maturity - Weighted Average Fixed Pay Interest Rate |
0.83% |
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Over Forty-Eight Months to Sixty Months [Member]
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| Note 8 - Derivatives Instruments and Hedging Activities (Details) - Interest Rate Swaps [Line Items] |
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| Maturity - Notional Amount (in Dollars) |
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$ 215,000 |
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| Maturity - Weighted Average Fixed Pay Interest Rate |
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0.83% |
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