Note 17 - Other Operating Expenses - Other Operating Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Professional services	$ 3,946	$ 3,282	$ 13,079	$ 9,678
Postage	1,091	1,150	3,427	3,458
Telephone	943	912	3,003	3,014
Credit card expense	3,137	2,947	9,081	8,319
Marketing	1,219	1,525	4,253	4,647
Operating supplies	592	457	1,406	1,273
Amortization of intangibles	1,724	1,503	4,828	4,411
Branch right sizing expense	153	218	370	3,451
Other expense	5,458	5,185	18,588	14,851
Total other operating expenses	$ 18,263	$ 17,179	$ 58,035	$ 53,102