Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Nonperforming Assets - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Nonperforming assets:
Nonaccrual loans		$ 2,043	$ 3,999
Restructured loans in nonaccrual		4,639	5,288
Total nonperforming loans		6,682	9,287
Other real estate owned, net		4,165	4,744
Total nonperforming assets		$ 10,847	$ 14,031
Ratio of nonperforming assets to loans, net of unearned income and deferred fees, plus other real estate owned		1.74%	2.30%
Ratio of allowance for loan losses to nonperforming loans(1)	[1]	124.17%	88.97%

[1] The Company defines nonperforming loans as total nonaccrual and restructured loans that are nonaccrual. Loans 90 days past due and still accruing and accruing restructured loans are excluded.