Note 11 - Deposits - Scheduled Maturities of Time Deposits of $250 Thousand or More (Details) $ in Thousands	Dec. 31, 2017 USD ($)
Three months or less	$ 7,872
Over three months through six months	8,268
Over six months through twelve months	8,725
Over twelve months	33,709
Total certificates of deposit of $250 thousand or more	$ 58,574