Note 5 - Loans (Details) - Allowance for Loan Losses (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Allowance for Loan Losses [Abstract]
Balance	$ 30,270	$ 31,027	$ 31,776	$ 31,104
Provision (benefit) for loan losses	(1,092)	3,500	(2,211)	9,500
Charge-off's	(370)	(2,606)	(1,271)	(8,888)
Recoveries	427	434	941	639
Balance	$ 29,235	$ 32,355	$ 29,235	$ 32,355