Note 6 - Loans and Allowance for Credit Losses (Details) - Nonaccrual Loans (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014		Dec. 31, 2013		Jun. 30, 2013
Note 6 - Loans and Allowance for Credit Losses (Details) - Nonaccrual Loans [Line Items]
Financing Receivable Recorded Investment Nonaccrual Status	$ 22,507	[1],[2]	$ 24,702	[1],[2]	$ 23,507	[1],[2]
Commercial Loan [Member]
Note 6 - Loans and Allowance for Credit Losses (Details) - Nonaccrual Loans [Line Items]
Financing Receivable Recorded Investment Nonaccrual Status	8,671		6,779		6,806
Commercial Real Estate Investment [Member]
Note 6 - Loans and Allowance for Credit Losses (Details) - Nonaccrual Loans [Line Items]
Financing Receivable Recorded Investment Nonaccrual Status	2,676		2,525		3,266
Commercial Real Estate Owner Occupied [Member]
Note 6 - Loans and Allowance for Credit Losses (Details) - Nonaccrual Loans [Line Items]
Financing Receivable Recorded Investment Nonaccrual Status	3,230		5,452		2,357
Residential Mortgage [Member]
Note 6 - Loans and Allowance for Credit Losses (Details) - Nonaccrual Loans [Line Items]
Financing Receivable Recorded Investment Nonaccrual Status	650		887		790
Home Equity Line of Credit [Member]
Note 6 - Loans and Allowance for Credit Losses (Details) - Nonaccrual Loans [Line Items]
Financing Receivable Recorded Investment Nonaccrual Status	403		623		411
Consumer, Other [Member]
Note 6 - Loans and Allowance for Credit Losses (Details) - Nonaccrual Loans [Line Items]
Financing Receivable Recorded Investment Nonaccrual Status			70		11
Construction Loans [Member]
Note 6 - Loans and Allowance for Credit Losses (Details) - Nonaccrual Loans [Line Items]
Financing Receivable Recorded Investment Nonaccrual Status	$ 6,877		$ 8,366		$ 9,866

[1] Excludes troubled debt restructurings ("TDRs") that were performing under their restructured terms totaling $7.9 million at June 30, 2014 and December 31, 2013, and $14.8 million at June 30, 2013.

[2] Gross interest income of $850 thousand would have been recorded in 2014 if nonaccrual loans shown above had been current and in accordance with theiroriginal terms, while interest actually recorded on such loans was $479 thousand. See Note 1 to the consolidated financial statements for a description of theCompany's policy for placing loans on nonaccrual status.