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Note 3 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans - Restructurings By Class (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)
Number of contracts	2	3	4	3
Pre-modification outstanding principal balance	$ 714		$ 3,596	$ 250
Post-modification outstanding principal balance	$ 714		$ 3,596	$ 250
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member]
Number of contracts	2		2
Pre-modification outstanding principal balance	$ 714		$ 714
Post-modification outstanding principal balance	$ 714		$ 714
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Other [Member]
Number of contracts			2	1
Pre-modification outstanding principal balance			$ 2,882	$ 132
Post-modification outstanding principal balance			$ 2,882	$ 132
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member]
Number of contracts				2
Pre-modification outstanding principal balance				$ 118
Post-modification outstanding principal balance				$ 118

X

- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
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+ References

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-Section 50
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