Note 8 - Premises and Equipment (Details) - Premises and Equipment (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 165,388	$ 159,282
Less: Accumulated depreciation/amortization	63,343	56,669
Premises and equipment, net	102,045	102,613
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	33,441	33,429
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	73,756	73,723
Furniture, Fixtures, and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	44,278	39,701
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	12,753	12,391
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 1,160	$ 38