Note 9 - Assets and Liabilities Reported Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Inputs, Level 2 [Member] | US Government Agencies Debt Securities [Member]
Available for sale securities	$ 48,599	$ 51,188
Fair Value, Inputs, Level 2 [Member] | US States and Political Subdivisions Debt Securities [Member]
Available for sale securities	40,642	40,074
Fair Value, Inputs, Level 2 [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Available for sale securities	3,233	3,403
Fair Value, Inputs, Level 1 [Member] | Equity Securities - Mutual Funds [Member]
Available for sale securities	521	513
Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member]
Available for sale securities	668	685
Available for sale securities	$ 93,663	$ 95,863