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Percentage of charge-off to contractual balances for impaired loans.

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The period the loan is in payment default.

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Troubled debt restructurings length of modifications.

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Amount of allowance for credit losses related to receivables which had been measured under a general allowance for credit losses methodology that are now identified as troubled debt restructurings.

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No definition available.

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The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 40

-Section 50

-Paragraph 4

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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

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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 14A

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- Definition

Reflects the unfunded portion of contractual agreements to lend funds to borrowers for loans whose terms have been modified by troubled debt restructuring.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 40

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18794-111554

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- Definition

Amount, after allowance for bad debt, of loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

+ 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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Note 8 - Loans (Details)	9 Months Ended
Note 8 - Loans (Details)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Dec. 31, 2013 USD ($)
Note 8 - Loans (Details) [Line Items]
Impaired Financing Receivable, Recorded Investment	$ 161,122,000		$ 174,519,000
Percentage of Charge-off to Contractual Balances for Impaired Loans	18.90%		17.10%
Loans and Leases Receivable, Impaired, Commitment to Lend	$ 0
Loans Receivable Held-for-sale, Net, Not Part of Disposal Group	0		$ 973,000
Nonaccrual Loans [Member]
Note 8 - Loans (Details) [Line Items]
Impaired Financing Receivable, Recorded Investment	71,200,000		70,200,000
Financing Receivable, Modifications, Recorded Investment	41,800,000		41,600,000
Allowance for Credit Losses, Change in Method of Calculating Impairment	5,500,000		4,900,000
Accruing Troubled Debt Restructuring [Member]
Note 8 - Loans (Details) [Line Items]
Impaired Financing Receivable, Recorded Investment	89,900,000		104,300,000
Financing Receivable, Modifications, Recorded Investment	89,881,000	$ 100,011,000	104,356,000	$ 123,089,000	$ 111,136,000	$ 117,597,000
Allowance for Credit Losses, Change in Method of Calculating Impairment	$ 1,100,000		6,500,000
Commercial Portfolio Segment [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0
Commercial Portfolio Segment [Member] \| Accruing Troubled Debt Restructuring [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 12,872,000		$ 16,506,000
Minimum [Member]
Note 8 - Loans (Details) [Line Items]
Period Loan is in Payment Default	60 days
Minimum [Member] \| Reduction of Interest Rate and Change in Payment Terms [Member]
Note 8 - Loans (Details) [Line Items]
Troubled Debt Restructurings Length of Modifications	6 months
Maximum [Member]
Note 8 - Loans (Details) [Line Items]
Period Loan is in Payment Default	90 days
Maximum [Member] \| Reduction of Interest Rate and Change in Payment Terms [Member]
Note 8 - Loans (Details) [Line Items]
Troubled Debt Restructurings Length of Modifications	3 years