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Note 19 - Derivative Financial Instruments (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Note 19 - Derivative Financial Instruments (Details) [Line Items]
Junior Subordinated Notes	$ 61,900,000us-gaap_JuniorSubordinatedNotes
Derivative Asset, Notional Amount	50,792,000us-gaap_DerivativeAssetNotionalAmount	129,217,000us-gaap_DerivativeAssetNotionalAmount
Not Designated as Hedging Instrument [Member]
Note 19 - Derivative Financial Instruments (Details) [Line Items]
Derivative Asset, Notional Amount	36,300,000	118,000,000
Designated as Hedging Instrument [Member]
Note 19 - Derivative Financial Instruments (Details) [Line Items]
Derivative Asset, Notional Amount	14,500,000	11,200,000
Floating Rate Junior Subordinated Debentures [Member]
Note 19 - Derivative Financial Instruments (Details) [Line Items]
Derivative, Amount of Hedged Item	$ 18,000,000

Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments.

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