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Note 6 - Loans and Allowance for Credit Losses (Details) - Impaired Loans (USD $) In Thousands, unless otherwise specified	9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	$ 39,186	$ 37,824	$ 32,946
Recorded Investment With No Allowance	16,440	16,135	9,892
Recorded Investment With Allowance	20,780	21,389	22,754
Total Recorded Investment	37,220	37,524	32,646
Related Allowance	8,013	7,160	6,520
Commercial Loan [Member] | Quarter to Date [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	12,051	10,184	8,193
Average Recorded Investment- Year To Date	228	(7)	53
Commercial Loan [Member] | Year to Date [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	12,132	9,402	8,877
Average Recorded Investment- Year To Date	231	78	131
Commercial Loan [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	16,531	9,607	6,779
Recorded Investment With No Allowance	950	2,442	2,327
Recorded Investment With Allowance	14,481	7,165	4,452
Total Recorded Investment	15,431	9,607	6,779
Related Allowance	4,409	3,019	1,323
Commercial Real Estate Investment [Member] | Quarter to Date [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	5,975	5,934	6,183
Average Recorded Investment- Year To Date	(71)	62	38
Commercial Real Estate Investment [Member] | Year to Date [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	5,873	5,719	5,755
Average Recorded Investment- Year To Date	7	137	175
Commercial Real Estate Investment [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	6,284	6,464	5,902
Recorded Investment With No Allowance	4,839	1,451	1,322
Recorded Investment With Allowance	1,070	5,013	4,580
Total Recorded Investment	5,909	6,464	5,902
Related Allowance	578	1,097	1,098
Commercial Real Estate Owner Occupied [Member] | Quarter to Date [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	3,366	6,432	5,939
Average Recorded Investment- Year To Date	6	(43)	52
Commercial Real Estate Owner Occupied [Member] | Year to Date [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	4,877	6,493	6,285
Average Recorded Investment- Year To Date	6	56	108
Commercial Real Estate Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	3,502	6,426	5,452
Recorded Investment With No Allowance	391	5,530	111
Recorded Investment With Allowance	3,111	896	5,341
Total Recorded Investment	3,502	6,426	5,452
Related Allowance	1,330	823	1,853
Residential Mortgage [Member] | Quarter to Date [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	500	843	891
Average Recorded Investment- Year To Date			2
Residential Mortgage [Member] | Year to Date [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	665	769	792
Average Recorded Investment- Year To Date			2
Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	350	895	887
Recorded Investment With No Allowance	350	783	774
Recorded Investment With Allowance		112	113
Total Recorded Investment	350	895	887
Related Allowance		27	27
Home Equity Line of Credit [Member] | Quarter to Date [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	496	461	567
Average Recorded Investment- Year To Date	4	2	2
Home Equity Line of Credit [Member] | Year to Date [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	553	479	508
Average Recorded Investment- Year To Date	4	2	4
Home Equity Line of Credit [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	588	511	623
Recorded Investment With No Allowance	125	37
Recorded Investment With Allowance	463	474	623
Total Recorded Investment	588	511	623
Related Allowance	218	373	526
Consumer, Other [Member] | Quarter to Date [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date		28	58
Average Recorded Investment- Year To Date		1	1
Consumer, Other [Member] | Year to Date [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	33	25	34
Average Recorded Investment- Year To Date		1	2
Consumer, Other [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance		45	70
Recorded Investment With Allowance		45	70
Total Recorded Investment		45	70
Related Allowance		45	68
Quarter to Date [Member] | Construction Loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	11,429	14,033	13,405
Average Recorded Investment- Year To Date	159	41	44
Quarter to Date [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	33,817	37,915	35,236
Average Recorded Investment- Year To Date	326	56	192
Year to Date [Member] | Construction Loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	12,004	18,315	17,298
Average Recorded Investment- Year To Date	711	125	169
Year to Date [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment- Quarter To Date	36,137	41,202	39,549
Average Recorded Investment- Year To Date	959	399	591
Construction Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	11,931	13,876	13,233
Recorded Investment With No Allowance	9,785	5,892	5,358
Recorded Investment With Allowance	1,655	7,684	7,575
Total Recorded Investment	11,440	13,576	12,933
Related Allowance	$ 1,478	$ 1,776	$ 1,625

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ 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)(1)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524



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+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

-Name Accounting Standards Codification

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