Note 7 - Securities Available for Sale - Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Due less than one year, amortized cost	$ 45,667
Due less than one year, fair value	45,642
Due after one year through five years, amortized cost	32,938
Due after one year through five years, fair value	32,953
Due after five years through ten years, amortized cost	5,481
Due after five years through ten years, fair value	5,495
Due after ten years, amortized cost	797
Due after ten years, fair value	762
Total, amortized cost	84,883	$ 81,381
Total, fair value	$ 84,852	$ 79,859

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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