Note 6 - Concentration of Credit Risk (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2011	Dec. 31, 2010
Loan Commitments And Standby Letters Of Credit	$ 4,266	$ 13,048
Commercial Real Estate Loans [Member]
Loan To Value Ratio Requirement	75.00%
Residential Real Estate Loans [Member]
Loan To Value Ratio Requirement	80.00%