Note 5 - Other Real Estate Owned - Classification of Other Real Estate Owned and Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016		Dec. 31, 2015
Other Real Estate Owned	$ 2,768	$ 4,337	$ 2,768	$ 4,337	$ 3,794	[1]	$ 5,237
Net loss on sales		91		91
Provision for unrealized losses	380		380
Operating expenses	24	25	37	47
Total Other Real Estate Owned	404	$ 116	417	$ 138
Residential Lots [Member]
Other Real Estate Owned	2,187		2,187		2,234
Residential Development [Member]
Other Real Estate Owned	43		43		423
Commercial Lots [Member]
Other Real Estate Owned	90		90		90
Commercial Buildings [Member]
Other Real Estate Owned	$ 448		$ 448		$ 1,047

[1] Derived from consolidated audited financial statements.