Note 9 - Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
Note 9 - Fair Value Measurements (Details) [Line Items]
Securities Selected for OTTI Analysis, Market Price Threshold	95.00%
Securities Selected for OTTI Analysis, Market To Book Ratio Threshold	95
Loans and Leases Receivable, Allowance	$ 31,769	$ 32,398	$ 31,693	$ 31,916	$ 30,926	$ 30,234
Purchased Covered Loans [Member]
Note 9 - Fair Value Measurements (Details) [Line Items]
Loans and Leases Receivable, Allowance			1,561	1,566	285	1,005
Fair Value Discount, Credit Default Risk, Purchased Loans	501		10,933
Purchased Non-Covered Loans [Member]
Note 9 - Fair Value Measurements (Details) [Line Items]
Loans and Leases Receivable, Allowance	2,574	2,707
Fair Value Discount, Credit Default Risk, Purchased Loans	$ 10,233		$ 3,245
Fair Value, Inputs, Level 2 [Member]
Note 9 - Fair Value Measurements (Details) [Line Items]
Fair Value Inputs, Discount Rate	10.00%