Note 5 - Allowances for Loan Losses (Details) - Past Due Loans (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, 30-59 days past due	$ 1,681	$ 21,504
Loans receivable, 60 to 89 days past due	14,062	6,987
Loans receivable, greater than 90 days	21,440	10,420
Loans receivable, total past due	37,183	38,911
Loans receivable, current	745,196	640,638
Loans receivable	782,379	679,549
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, 30-59 days past due	713	19,707
Loans receivable, 60 to 89 days past due	11,034	5,635
Loans receivable, greater than 90 days	13,979	1,104
Loans receivable, total past due	25,726	26,446
Loans receivable, current	353,533	316,348
Loans receivable	379,259	342,794
Commercial Real Estate Construction Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, greater than 90 days	377	1,618
Loans receivable, total past due	377	1,618
Loans receivable, current	29,484	22,359
Loans receivable	29,861	23,977
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, 30-59 days past due	193	951
Loans receivable, 60 to 89 days past due	2,186	71
Loans receivable, greater than 90 days	4,349	6,837
Loans receivable, total past due	6,728	7,859
Loans receivable, current	138,385	110,350
Loans receivable	145,113	118,209
Owner Occupied Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, 30-59 days past due	626	808
Loans receivable, 60 to 89 days past due	812	1,281
Loans receivable, greater than 90 days	2,306	205
Loans receivable, total past due	3,744	2,294
Loans receivable, current	184,281	157,935
Loans receivable	188,025	160,229
Consumer Other Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, 30-59 days past due	149	38
Loans receivable, 60 to 89 days past due	30
Loans receivable, greater than 90 days	429	656
Loans receivable, total past due	608	694
Loans receivable, current	39,105	31,287
Loans receivable	39,713	31,981
Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current	408	2,359
Loans receivable	$ 408	$ 2,359

Financing receivables that are less than 60 days past due but more than 29 days past due.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7A

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953401-111524

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Financing receivables that are less than 90 days past due but more than 59 days past due.

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Financing receivables that are current.

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Financing receivables that are equal to or greater than 90 days past due.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. 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 45

-Paragraph 2

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

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