Note 8 - Loans & Allowance for Loan Losses (Details) - Non-Accrual Loans (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Commercial:
90 days or more past due and still accruing	$ 442	$ 0
Non-accrual	17,301	18,572
Commercial:Commercial and Industrial [Member]
Commercial:
90 days or more past due and still accruing	0	0
Non-accrual	5,535	6,174
Commercial:Construction [Member]
Commercial:
90 days or more past due and still accruing	0	0
Non-accrual	2,029	2,480
Commercial:Secured by Commercial Real Estate [Member]
Commercial:
90 days or more past due and still accruing	0	0
Non-accrual	6,408	6,748
Commercial Secured By Residential Real Estate [Member]
Commercial:
90 days or more past due and still accruing	0	0
Non-accrual	2,698	2,390
State And Political Subdivisions [Member]
Commercial:
90 days or more past due and still accruing	425	0
Non-accrual	0	1
Loans To Depository Institutions [Member]
Commercial:
90 days or more past due and still accruing	0	0
Non-accrual	0	0
Indirect Lease Financing [Member]
Commercial:
90 days or more past due and still accruing	17	0
Non-accrual	72	98
Retail:1-4 Family Residential Mortgages [Member]
Commercial:
90 days or more past due and still accruing	0	0
Non-accrual	320	335
Retail Home Equity Loans And Lines [Member]
Commercial:
90 days or more past due and still accruing	0	0
Non-accrual	239	346
Retail:Consumer [Member]
Commercial:
90 days or more past due and still accruing	0	0
Non-accrual	$ 0	$ 0