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Note 3 - Loans and Allowance for Loan Losses (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Receivables [Abstract]
Loans and Leases Receivable, Net of Deferred Income	$ 1,066,796,000	$ 1,022,956,000	$ 1,053,243,000
Loans And Leases Receivable Period Increase (Decrease)	13,600,000
Loans And Leases Receivable Percentage Period Increase (Decrease)	1.30%
Impaired Financing Receivable, Interest Income, Accrual Method	$ 500,000
Loans Modified As Troubled Debt Restructuring Due Period	30 days	30 days

X

- Definition

Loans and leases receivable percentage period increase decrease.

+ References

No definition available.

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- Definition

Loans and leases receivable period increase decrease.

+ References

No definition available.

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- Definition

Number of past due days for loans modified as TDR.

+ References

No definition available.

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- Definition

Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524

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- Definition

Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5074-111524



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

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