Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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Outstanding notional amount specified by the derivative(s). Expressed as an absolute value.

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Represents the amount of negative fair value.

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Net accrued on interest rate swaps.

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- Definition

Notional Amount Of Option Contract

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Represents the fair value of open option contracts.

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Represents the amount of the positive fair value.

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- Definition

Sum of Spot and Forward Contract Notional Amount

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The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

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The number of derivative instruments of a particular derivative asset or group of derivative assets held by the entity.

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The average percentage points added to the reference rate to compute the variable rate on the group of interest rate derivatives.

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Average fixed interest rate related to the group of interest rate derivatives.

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Average variable interest rate related to the group of interest rate derivatives.

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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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Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Note 14 - Financial Derivatives (Details Textual) $ in Thousands		12 Months Ended
	May 31, 2014 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Junior Subordinated Notes, Total	$ 119,100	$ 119,136
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax		(3,171)	$ 1,525	$ 719
Cash [Member]
Collateral Already Posted, Aggregate Fair Value		7,100	1,800
Interest Rate Swap [Member] \| Cash Flow Hedging [Member] \| Designated as Hedging Instrument [Member]
Derivative Asset, Number of Instruments Held	5
Derivative Outstanding, Notional Amount	$ 119,100	119,100
Derivative Original Maturity	10 years
Derivative, Average Fixed Interest Rate	2.61%
Derivative, Average Variable Interest Rate	2.26%
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax		(3,400)	(241,000)
Net Accrued on Interest Rate Swaps		200	539
Interest Rate Swap [Member] \| Fair Value Hedging [Member] \| Designated as Hedging Instrument [Member]
Derivative Outstanding, Notional Amount		$ 579,600	613,400
Derivative Original Maturity		10 years
Derivative, Average Fixed Interest Rate		4.71%
Derivative, Average Variable Interest Rate		4.87%
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax		$ (7,200)	6,600
Net Accrued on Interest Rate Swaps		$ 996	256
Interest Rate Swap [Member] \| Fair Value Hedging [Member] \| Designated as Hedging Instrument [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Derivative, Average Basis Spread on Variable Rate		2.62%
Interest Rate Swap [Member] \| Fair Value Hedging [Member] \| Designated as Hedging Instrument [Member] \| Minimum [Member]
Derivative Original Maturity		3 years
Negative Fair Value [Member]
Notional Amount Of Option Contract		$ 908	1,200
Open Option Contracts Fair Value		7	6
Sum Of Spot And Forward Contract Notional Amount		127,000	95,000
Negative Fair Value		1,400	1,800
Positive Fair Value [Member]
Sum Of Spot And Forward Contract Notional Amount		146,400	86,900
Positive Fair Value		$ 2,400	$ 397