Note 3 - Loans (Details) - Allowance for Loan Losses (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for Loan Losses [Abstract]
Allowance for credit losses - balance	$ 31,104	$ 30,344	$ 27,699
Provision for loan losses	13,935	21,000	21,500
Charge-offs	(14,843)	(21,269)	(19,450)
Recoveries	1,580	1,029	595
Allowance for credit losses - balance	$ 31,776	$ 31,104	$ 30,344