Note 8 - Loans & Allowance for Loan Losses (Details) - Non-Accrual Loans (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Commercial:
Non-accrual	$ 15,329	$ 18,572
Commercial:Commercial and Industrial [Member]
Commercial:
Non-accrual	5,200	6,174
Commercial:Construction [Member]
Commercial:
Non-accrual	1,503	2,480
Commercial:Secured by Commercial Real Estate [Member]
Commercial:
Non-accrual	4,824	6,748
Commercial Secured By Residential Real Estate [Member]
Commercial:
Non-accrual	3,187	2,390
State And Political Subdivisions [Member]
Commercial:
Non-accrual		1
Indirect Lease Financing [Member]
Commercial:
Non-accrual	51	98
Retail:1-4 Family Residential Mortgages [Member]
Commercial:
Non-accrual	289	335
Retail Home Equity Loans And Lines [Member]
Commercial:
Non-accrual	$ 275	$ 346