Note 12 - Financial Assets Measured at Fair Value on a Non-recurring Basis (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Inputs, Level 1 [Member]
Impaired loans
Other real estate owned
Fair Value, Inputs, Level 2 [Member]
Impaired loans
Other real estate owned
Fair Value, Inputs, Level 3 [Member]
Impaired loans	1,959	363
Other real estate owned	851
Impaired loans	1,959	363
Other real estate owned	$ 851