Note 14 - Other Operating Income and Expense - Components of Other Operating Income and Expense (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other operating income:
Bank owned life insurance		$ 687	$ 1,365	$ 955
Other(1)	[1]	1,861	2,137	2,254
Total other operating income		2,548	3,502	3,209
Other operating expense:
OREO expense and net loss		1,549	1,202	1,420
Telephone and data communications		1,333	1,554	1,598
Office supplies		1,045	1,171	1,220
Other(1)	[1]	8,800	7,914	8,026
Total other operating expense		$ 12,727	$ 11,841	$ 12,264

[1] Other components of other operating income or expense that do not exceed 1% of total income.