Note 16 - Balance Sheet Offsetting - Financial Instruments That Are Eligible for Offset in the Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Derivative assets, gross	$ 18,419	$ 5,218
Derivative assets, net	18,419	5,218
Derivative assets not offset	18,419	5,218
Securities sold under agreements to repurchase		100,000
Securities sold under agreements to repurchase, net		100,000
Securities sold under agreements to repurchase, collateral posted		(100,000)
Derivative liabilities, gross		2,699
Derivative liabilities, net		2,699
Derivatives, collateral posted		$ (2,699)

This item represented the net amount of derivative assets presented in the balance sheet after offsetting.

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This item represented the net amount of derivative assets presented in the balance sheet which are not offset.

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This item represented the net amount of derivative liabilities presented in the balance after offsetting.

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No definition available.

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Net amounts of liabilities presented in the statement of financial position.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Fair value of securities pledged as collateral against derivative liabilities.

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The fair value as of the balance sheet date of financial instruments and other positions owned by the entity and pledged to counterparties as collateral, including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities.

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Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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