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Note 7 - Loans and Related Allowance for Loan and Lease Losses (Details) - Troubled Debt Restructurings that Subsequently Defaulted (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013 Commercial and Industrial [Member]	Mar. 31, 2013 Residential Real Estate Mortgage [Member]	Mar. 31, 2013 Commercial Real Estate Mortgage [Member]
Note 7 - Loans and Related Allowance for Loan and Lease Losses (Details) - Troubled Debt Restructurings that Subsequently Defaulted [Line Items]
Number of Contracts	0	6	1	1
Recorded Investment		$ 248	$ 68	$ 5

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- Details

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 34

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953682-111524

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- Definition

Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 34

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953682-111524

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