Note 9 - Mortgage Banking Derivatives (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Note 9 - Mortgage Banking Derivatives (Details) [Line Items]
Derivative, Notional Amount	$ 39,600	$ 45,100
Derivative Liability	1,417	250
Other Assets [Member]
Note 9 - Mortgage Banking Derivatives (Details) [Line Items]
Derivative Asset	24	146
Other Liabilities [Member]
Note 9 - Mortgage Banking Derivatives (Details) [Line Items]
Derivative Liability	30	250
Derivative Instruments [Member]
Note 9 - Mortgage Banking Derivatives (Details) [Line Items]
Noninterest Income, Other	(155)	140
Hedging Activities [Member]
Note 9 - Mortgage Banking Derivatives (Details) [Line Items]
Noninterest Income, Other	$ 202	$ (108)

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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

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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.

+ References

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 210
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Represents the total of noninterest income derived from certain activities and assets including (for example): (1) venture capital investments; (2) bank owned life insurance; (3) foreign currency transactions; and (4) mortgage servicing rights.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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