Note 22 - Intangible Assets (Details) - Acquired Core Deposit and Customer Relationship Intangible Assets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 0	$ 4,524
Accumulated amortization	0	4,075
Net amount	0	449
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	0	4,524
Accumulated amortization	0	4,075
Net amount	$ 0	$ 449