Note 5 - Securities (Details) - Sales of Securities (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Note 5 - Securities (Details) - Sales of Securities [Line Items]
Proceeds from sales of securities	$ 32,099	$ 35,370	$ 68,785	$ 45,342
Gross realized gains on sales of securities:
Gross realized gains on sales of securities	207	505	534	695
Gross realized losses on sales of securities
Gross realized losses on sales of securities	(246)	(99)	(818)	(100)
(Loss) gain on investment securities, net	(39)	406	(284)	595
Obligations Of State And Political Subdivisions [Member]
Gross realized gains on sales of securities:
Gross realized gains on sales of securities	14	145	171	177
Gross realized losses on sales of securities
Gross realized losses on sales of securities	(69)	(10)	(159)	(10)
Residential Mortgage Backed Securities and Collateralized Mortgage Obligations [Member]
Gross realized gains on sales of securities:
Gross realized gains on sales of securities	63	18	68	105
Gross realized losses on sales of securities
Gross realized losses on sales of securities	(13)	(50)	(482)	(51)
Corporate Debt Securities [Member]
Gross realized gains on sales of securities:
Gross realized gains on sales of securities	85	342	227	360
Gross realized losses on sales of securities
Gross realized losses on sales of securities	(8)	(12)	(8)	(12)
Commercial Mortgage Backed Securities [Member]
Gross realized gains on sales of securities:
Gross realized gains on sales of securities	5		5
Gross realized losses on sales of securities
Gross realized losses on sales of securities	(31)		(32)
Other Asset Backed Securities [Member]
Gross realized gains on sales of securities:
Gross realized gains on sales of securities	40		63	53
Gross realized losses on sales of securities
Gross realized losses on sales of securities	(10)		(23)
US Government Agencies Debt Securities [Member]
Gross realized losses on sales of securities
Gross realized losses on sales of securities	$ (115)	$ (27)	$ (114)	$ (27)

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This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563

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This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

+ References

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This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

+ References

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- Definition

The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (a),(b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

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