Note 8 - Loans and Allowance for Loan Losses (Details) - Non-Accrual Loans (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Note 8 - Loans and Allowance for Loan Losses (Details) - Non-Accrual Loans [Line Items]
90 days or more past due and still accruing		$ 1
Non-accrual	12,824	13,453
Commercial:Commercial and Industrial [Member]
Note 8 - Loans and Allowance for Loan Losses (Details) - Non-Accrual Loans [Line Items]
Non-accrual	3,099	3,956
Commercial:Construction [Member]
Note 8 - Loans and Allowance for Loan Losses (Details) - Non-Accrual Loans [Line Items]
Non-accrual	1,097	1,319
Commercial:Secured by Commercial Real Estate [Member]
Note 8 - Loans and Allowance for Loan Losses (Details) - Non-Accrual Loans [Line Items]
Non-accrual	2,739	4,630
Commercial Secured By Residential Real Estate [Member]
Note 8 - Loans and Allowance for Loan Losses (Details) - Non-Accrual Loans [Line Items]
Non-accrual	5,146	2,829
Indirect Lease Financing [Member]
Note 8 - Loans and Allowance for Loan Losses (Details) - Non-Accrual Loans [Line Items]
Non-accrual	27	37
Retail:1-4 Family Residential Mortgages [Member]
Note 8 - Loans and Allowance for Loan Losses (Details) - Non-Accrual Loans [Line Items]
Non-accrual	397	401
Retail Home Equity Loans And Lines [Member]
Note 8 - Loans and Allowance for Loan Losses (Details) - Non-Accrual Loans [Line Items]
Non-accrual	319	265
Retail:Consumer [Member]
Note 8 - Loans and Allowance for Loan Losses (Details) - Non-Accrual Loans [Line Items]
90 days or more past due and still accruing		1
Non-accrual		$ 16