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Note 4 - Securities - Securities Available-for-sale (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Securities available-for-sale, amortized costs	$ 570,277	$ 530,075
Securities available-for-sale, gross unrealized gains	10,084	17,170
Securities available-for-sale, gross unrealized losses	9,002	503
Securities available-for-sale, fair values	571,359	546,742
US Government Agencies Debt Securities [Member]
Securities available-for-sale, amortized costs	131,670	86,859
Securities available-for-sale, gross unrealized gains	2,933	4,477
Securities available-for-sale, gross unrealized losses	4,378	173
Securities available-for-sale, fair values	130,225	91,163
US States and Political Subdivisions Debt Securities [Member]
Securities available-for-sale, amortized costs	199,874	196,435
Securities available-for-sale, gross unrealized gains	3,706	7,778
Securities available-for-sale, gross unrealized losses	4,395	252
Securities available-for-sale, fair values	199,185	203,961
Collateralized Mortgage Backed Securities [Member]
Securities available-for-sale, amortized costs	236,732	244,780
Securities available-for-sale, gross unrealized gains	3,293	4,473
Securities available-for-sale, gross unrealized losses	229	78
Securities available-for-sale, fair values	239,796	249,175
Corporate Debt Securities [Member]
Securities available-for-sale, amortized costs	2,001	2,001
Securities available-for-sale, gross unrealized gains	152	442
Securities available-for-sale, fair values	$ 2,153	$ 2,443

X

- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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+ References

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