Note 18 - Intangible Assets and Goodwill - Schedule of Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Intangible assets, gross carrying value	$ 22,105	$ 22,105
Intangible assets, accumulated amortization	16,139	15,881
Intangible assets, net carrying value	5,966	6,224
Unamortizable goodwill, gross carrying value	5,848	5,848
Unamortizable goodwill, net carrying value	5,848	5,848
Core Deposits [Member]
Intangible assets, gross carrying value	16,257	16,257
Intangible assets, accumulated amortization	16,139	15,881
Intangible assets, net carrying value	$ 118	$ 376