Note 7 - Loans and Related Allowance for Loan and Lease Losses (Details) - Troubled Debt Restructurings (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended				3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2014 Commercial and Industrial [Member]	Jun. 30, 2014 Commercial and Industrial [Member]	Jun. 30, 2013 Commercial and Industrial [Member]	Jun. 30, 2014 Residential Real Estate Mortgage [Member]	Jun. 30, 2013 Residential Real Estate Mortgage [Member]	Jun. 30, 2014 Commercial Real Estate Mortgage [Member]	Jun. 30, 2014 Commercial Real Estate Mortgage [Member]	Jun. 30, 2013 Consumer Installment [Member]	Jun. 30, 2014 Consumer Installment [Member]	Jun. 30, 2013 Consumer Installment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	1	5	1	2	1	1	1	1	1
Pre-Modification - Outstanding Recorded Investment (in Dollars)	$ 7	$ 7	$ 742	$ 49	$ 383	$ 73	$ 73	$ 7	$ 7	$ 644