Note 4 - Loans and Allowance for Loan Losses - Loans Restructured as TDRs, Excluding Loans Acquired, Segregated by Class of Loans (Details) $ in Thousands	12 Months Ended
Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Financing Receivable, Modifications, Number of Contracts	70	18
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 13,907	$ 2,636
Balance	13,757	2,545
Extended Maturity [Member]
Modification	12,071	$ 2,545
Contractual Interest Rate Reduction [Member]
Modification	$ 1,686
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications, Number of Contracts	2	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 50	$ 13
Balance	11	13
Consumer Portfolio Segment [Member] \| Extended Maturity [Member]
Modification	$ 11	$ 13
Consumer Portfolio Segment [Member] \| Other Consumer [Member]
Financing Receivable, Modifications, Number of Contracts	2	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 50	$ 13
Balance	11	13
Consumer Portfolio Segment [Member] \| Other Consumer [Member] \| Extended Maturity [Member]
Modification	$ 11	$ 13
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Modifications, Number of Contracts	51	12
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 11,861	$ 2,276
Balance	11,778	2,200
Commercial Real Estate Portfolio Segment [Member] \| Extended Maturity [Member]
Modification	10,092	$ 2,200
Commercial Real Estate Portfolio Segment [Member] \| Contractual Interest Rate Reduction [Member]
Modification	$ 1,686
Commercial Real Estate Portfolio Segment [Member] \| Single Family Residential Loans [Member]
Financing Receivable, Modifications, Number of Contracts	23	11
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 1,570	$ 1,179
Balance	1,518	1,103
Commercial Real Estate Portfolio Segment [Member] \| Single Family Residential Loans [Member] \| Extended Maturity [Member]
Modification	964	$ 1,103
Commercial Real Estate Portfolio Segment [Member] \| Single Family Residential Loans [Member] \| Contractual Interest Rate Reduction [Member]
Modification	$ 554
Commercial Real Estate Portfolio Segment [Member] \| Other Commercial Loans [Member]
Financing Receivable, Modifications, Number of Contracts	28	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 10,291	$ 1,097
Balance	10,260	1,097
Commercial Real Estate Portfolio Segment [Member] \| Other Commercial Loans [Member] \| Extended Maturity [Member]
Modification	9,128	$ 1,097
Commercial Real Estate Portfolio Segment [Member] \| Other Commercial Loans [Member] \| Contractual Interest Rate Reduction [Member]
Modification	$ 1,132
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications, Number of Contracts	17	5
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 1,996	$ 347
Balance	1,968	332
Commercial Portfolio Segment [Member] \| Extended Maturity [Member]
Modification	$ 1,968	$ 332

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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+ References

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+ References

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