Note 11 - Borrowings (Details) - Information Relating to Securities Sold Under Agreements to Repurchase (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Securities Financing Transaction [Line Items]
Balance	$ 47,635	$ 42,785
Average Interest Rate [Member]
Securities Financing Transaction [Line Items]
Average Interest Rate	0.19%	0.19%
Daily Average Outstanding Balance [Member]
Securities Financing Transaction [Line Items]
Balance	46,050	47,605
Daily Average Interest Rate [Member]
Securities Financing Transaction [Line Items]
Average Interest Rate	0.18%	0.18%
Maximum Outstanding Month End [Member]
Securities Financing Transaction [Line Items]
Balance	$ 50,830	$ 55,047