Note 10 - Leases - Operating Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Operating Lease Expense	$ 116	$ 115
Variable Lease Expense	9	8
Total Lease Expense	$ 125	$ 123
Weighted Average Lease Term in Years (Year)	7 years 40 days		7 years 21 days
Weighted Average Discount Rate	2.90%		2.89%
Accrued Interest and Other Assets [Member]
ROU Assets	$ 1,205		$ 1,289