Note 2 - Securities (Detail) - Future Contractual Maturities Of Debt Securities (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Within two to five years	$ 14,794
Within two to five years	14,982
Within six to ten years	66,269
Within six to ten years	66,845
After ten years	10,417
After ten years	10,509
After ten years	4,046
After ten years	4,610
Mortgage-backed securities and collateralized mortgage obligations	60,889
Mortgage-backed securities and collateralized mortgage obligations	62,175
Total debt securities	152,369
Total debt securities	154,511
Total debt securities	4,046
Total debt securities	$ 4,610	$ 4,536