Note 7 - Securities Available for Sale - Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Due less than one year, amortized cost	$ 63,341
Due less than one year, fair value	64,159
Due after one year through five years, amortized cost	43,832
Due after one year through five years, fair value	44,776
Due after five years through ten years, amortized cost	8,662
Due after five years through ten years, fair value	8,865
Due after ten years, amortized cost	865
Due after ten years, fair value	764
Total, amortized cost	116,700	$ 107,528
Total, fair value	$ 118,564	$ 107,592

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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